dsp

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v0.0.0-...-a855d00 Latest Latest
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 Go to latest Published: Aug 25, 2019 License: Apache-2.0 Imports: 5 Imported by: 13

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Index

Constants

View Source 
const MinusTwoPi = -TwoPi
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const OneOverTwoPi = float32(1 / (2 * math.Pi))
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const TwoPi = float32(math.Pi * 2)

Variables

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var AddComplexComplexVectors func(A, B []complex64)

AddComplexComplexVectors performs addition of each element from A by the same element in B A[i] = A[i] + B[i]

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var AddFloatFloatVectors func(A, B []float32)

AddFloatFloatVectors performs addition of each element from A by the same element in B A[i] = A[i] + B[i]

View Source 
var ComplexDotProductResult func(input []complex64, taps []complex64) complex64

ComplexDotProductResult performs the Dot Product between two complex vectors and returns result

View Source 
var DivideComplexComplexVectors func(A, B []complex64)

DivideComplexComplexVectors performs division of each element from A by the same element in B A[i] = A[i] / B[i]

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var DivideFloatFloatVectors func(A, B []float32)

DivideFloatFloatVectors performs division of each element from A by the same element in B A[i] = A[i] / B[i]

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var DotProductFloatResult func(input []float32, taps []float32) float32

DotProductFloatResult performs the Dot Product between two float32 vectors and returns result

View Source 
var DotProductResult func(input []complex64, taps []float32) complex64

DotProductResult performs the Dot Product between a complex vector and a float32 vector and returns result

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var MultiplyComplexComplexVectors func(A, B []complex64)

MultiplyComplexComplexVectors performs multiplication of each element from A by the same element in B A[i] = A[i] * B[i]

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var MultiplyConjugate func(vecA, vecB []complex64, length int) []complex64

MultiplyConjugate performs the Multply by conjugate for each item from vecA and vecB output[i] = vecA[i] * Conj(vecB[i])

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var MultiplyConjugateInline func(vecA, vecB []complex64, length int)

MultiplyConjugateInline performs the Multply by conjugate for each item from vecA and vecB with the result in vecA vecA[i] = vecA[i] * Conj(vecB[i])

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var MultiplyFloatFloatVectors func(A, B []float32)

MultiplyFloatFloatVectors performs multiplication of each element from A by the same element in B A[i] = A[i] * B[i]

View Source 
var RotateComplex func(input []complex64, phase *complex64, phaseIncrement complex64, length int) []complex64

RotateComplex performs the phase rotation of each input items by phase and then increments phase out[i] = input[i] * phase phase = phase * phaseIncrement

View Source 
var RotateComplexBuffer func(input, output []complex64, phase *complex64, phaseIncrement complex64, length int) int

RotateComplex performs the phase rotation of each input items by phase and then increments phase out[i] = input[i] * phase phase = phase * phaseIncrement

View Source 
var SubtractComplexComplexVectors func(A, B []complex64)

SubtractComplexComplexVectors performs addition of each element from A by the same element in B A[i] = A[i] - B[i]

View Source 
var SubtractFloatFloatVectors func(A, B []float32)

SubtractFloatFloatVectors performs addition of each element from A by the same element in B A[i] = A[i] - B[i]

Functions

func Argument 

func Argument(c complex64) float32

func BlackmanHarris 

func BlackmanHarris(nTaps, atten int) []float64

func ComplexDotProduct 

func ComplexDotProduct(result *complex64, input []complex64, taps []complex64)

ComplexDotProduct performs the Dot Product between two complex vectors and store the result at *result

func Divide 

func Divide(c complex64, f float32) complex64

func DotProduct 

func DotProduct(result *complex64, input []complex64, taps []float32)

DotProduct performs the Dot Product between a complex vector and a float vector and store the result at *result

func DotProductFloat 

func DotProductFloat(result *float32, input []float32, taps []float32)

DotProductFloat performs the Dot Product between two float vectors and store the result at *result

func GetSIMDMode 

func GetSIMDMode() string

GetSIMDMode returns a string containg the current SIMD mode used.

func HammingWindow 

func HammingWindow(nTaps int) []float64

func MakeLowPass 

func MakeLowPass(gain, sampleRate, cutFrequency, transitionWidth float64) []float32

func MakeLowPass2 

func MakeLowPass2(gain, sampleRate, cutFrequency, transitionWidth, attenuation float64) []float32

func MakeLowPassFixed 

func MakeLowPassFixed(gain, sampleRate, cutFrequency float64, length int) []float32

func MakeRRC 

func MakeRRC(gain, sampleRate, symbolRate, alpha float64, nTaps int) []float32

func Min 

func Min(a, b int) int

func Modulus 

func Modulus(c complex64) float32

Types

type AttackDecayAGC 

type AttackDecayAGC struct {
	// contains filtered or unexported fields
}

func MakeAttackDecayAGC 

func MakeAttackDecayAGC(attackRate, decayRate, reference, gain, maxGain float32) *AttackDecayAGC

func (*AttackDecayAGC) PredictOutputSize 

func (adagc *AttackDecayAGC) PredictOutputSize(inputLength int) int

func (*AttackDecayAGC) Work 

func (adagc *AttackDecayAGC) Work(input []complex64) []complex64

func (*AttackDecayAGC) WorkBuffer 

func (adagc *AttackDecayAGC) WorkBuffer(input, output []complex64) int

type CTFirFilter 

type CTFirFilter struct {
	// contains filtered or unexported fields
}

func MakeCTFirFilter 

func MakeCTFirFilter(taps []complex64) *CTFirFilter

func MakeDecimationCTFirFilter 

func MakeDecimationCTFirFilter(decimation int, taps []complex64) *CTFirFilter

func (*CTFirFilter) Filter 

func (f *CTFirFilter) Filter(data []complex64, length int)

func (*CTFirFilter) FilterBuffer 

func (f *CTFirFilter) FilterBuffer(input, output []complex64) int

func (*CTFirFilter) FilterDecimate 

func (f *CTFirFilter) FilterDecimate(data []complex64, decimate int, length int)

func (*CTFirFilter) FilterDecimateBuffer 

func (f *CTFirFilter) FilterDecimateBuffer(input, output []complex64, decimate int) int

func (*CTFirFilter) FilterDecimateOut 

func (f *CTFirFilter) FilterDecimateOut(data []complex64, decimate int) []complex64

func (*CTFirFilter) FilterOut 

func (f *CTFirFilter) FilterOut(data []complex64) []complex64

func (*CTFirFilter) FilterSingle 

func (f *CTFirFilter) FilterSingle(data []complex64) complex64

func (*CTFirFilter) PredictOutputSize 

func (f *CTFirFilter) PredictOutputSize(inputLength int) int

func (*CTFirFilter) SetTaps 

func (f *CTFirFilter) SetTaps(taps []complex64)

func (*CTFirFilter) Work 

func (f *CTFirFilter) Work(data []complex64) []complex64

func (*CTFirFilter) WorkBuffer 

func (f *CTFirFilter) WorkBuffer(input, output []complex64) int

type Complex2Float32Worker 

type Complex2Float32Worker interface {
	Work(input []complex64) []float32
	WorkBuffer(input []complex64, output []float32) int
	PredictOutputSize(inputLength int) int
}

type Complex2Magnitude 

type Complex2Magnitude struct{}

func MakeComplex2Magnitude 

func MakeComplex2Magnitude() *Complex2Magnitude

func (*Complex2Magnitude) PredictOutputSize 

func (cm *Complex2Magnitude) PredictOutputSize(inputLength int) int

func (*Complex2Magnitude) Work 

func (cm *Complex2Magnitude) Work(data []complex64) []float32

func (*Complex2Magnitude) WorkBuffer 

func (cm *Complex2Magnitude) WorkBuffer(input []complex64, output []float32) int

type ComplexWorker 

type ComplexWorker interface {
	Work(input []complex64) []complex64
	WorkBuffer(input, output []complex64) int
	PredictOutputSize(inputLength int) int
}

type CostasLoop 

type CostasLoop interface {
	ComplexWorker
	GetError() float32
	GetAverageError() float32
	GetFrequency() float32
	GetFrequencyHz(float32) float32
	GetFrequencyShift() []float32
}

func MakeCostasLoop2 

func MakeCostasLoop2(loopBandwidth float32) CostasLoop

func MakeCostasLoop2WithFrequencyRange 

func MakeCostasLoop2WithFrequencyRange(loopBandwidth, minRelativeFrequency, maxRelativeFrequency float32) CostasLoop

func MakeCostasLoop4 

func MakeCostasLoop4(loopBandwidth float32) CostasLoop

func MakeCostasLoop4WithFrequencyRange 

func MakeCostasLoop4WithFrequencyRange(loopBandwidth, minRelativeFrequency, maxRelativeFrequency float32) CostasLoop

func MakeCostasLoop8 

func MakeCostasLoop8(loopBandwidth float32) CostasLoop

func MakeCostasLoop8WithFrequencyRange 

func MakeCostasLoop8WithFrequencyRange(loopBandwidth, minRelativeFrequency, maxRelativeFrequency float32) CostasLoop

type CostasLoop2 

type CostasLoop2 struct {
	// contains filtered or unexported fields
}

endregion region Second Order Costas Loop

func (*CostasLoop2) AdvanceLoop 

func (cl *CostasLoop2) AdvanceLoop(err float32)

func (*CostasLoop2) GetAlpha 

func (cl *CostasLoop2) GetAlpha() float32

func (*CostasLoop2) GetAverageError 

func (cl *CostasLoop2) GetAverageError() float32

func (*CostasLoop2) GetBeta 

func (cl *CostasLoop2) GetBeta() float32

func (*CostasLoop2) GetDampingFactor 

func (cl *CostasLoop2) GetDampingFactor() float32

func (*CostasLoop2) GetError 

func (cl *CostasLoop2) GetError() float32

func (*CostasLoop2) GetFrequency 

func (cl *CostasLoop2) GetFrequency() float32

func (*CostasLoop2) GetFrequencyHz 

func (cl *CostasLoop2) GetFrequencyHz(sampleRate float32) float32

func (*CostasLoop2) GetFrequencyShift 

func (cl *CostasLoop2) GetFrequencyShift() []float32

func (*CostasLoop2) GetLoopBandwidth 

func (cl *CostasLoop2) GetLoopBandwidth() float32

func (*CostasLoop2) GetMaxRelativeFrequency 

func (cl *CostasLoop2) GetMaxRelativeFrequency() float32

func (*CostasLoop2) GetMinRelativeFrequency 

func (cl *CostasLoop2) GetMinRelativeFrequency() float32

func (*CostasLoop2) GetPhase 

func (cl *CostasLoop2) GetPhase() float32

func (*CostasLoop2) PredictOutputSize 

func (cl *CostasLoop2) PredictOutputSize(input int) int

func (*CostasLoop2) Reset 

func (cl *CostasLoop2) Reset()

func (*CostasLoop2) SetAlpha 

func (cl *CostasLoop2) SetAlpha(alpha float32) error

func (*CostasLoop2) SetBeta 

func (cl *CostasLoop2) SetBeta(beta float32) error

func (*CostasLoop2) SetDampingFactor 

func (cl *CostasLoop2) SetDampingFactor(df float32) error

func (*CostasLoop2) SetFrequency 

func (cl *CostasLoop2) SetFrequency(freq float32)

func (*CostasLoop2) SetLoopBandwidth 

func (cl *CostasLoop2) SetLoopBandwidth(bw float32) error

func (*CostasLoop2) SetPhase 

func (cl *CostasLoop2) SetPhase(phase float32)

func (*CostasLoop2) SetRelativeMaxFrequency 

func (cl *CostasLoop2) SetRelativeMaxFrequency(freq float32)

func (*CostasLoop2) SetRelativeMinFrequency 

func (cl *CostasLoop2) SetRelativeMinFrequency(freq float32)

func (*CostasLoop2) UpdateGains 

func (cl *CostasLoop2) UpdateGains()

func (*CostasLoop2) Work 

func (cl *CostasLoop2) Work(input []complex64) []complex64

func (*CostasLoop2) WorkBuffer 

func (cl *CostasLoop2) WorkBuffer(input, output []complex64) int

type CostasLoop4 

type CostasLoop4 struct {
	// contains filtered or unexported fields
}

endregion region 4th Order Costas Loop

func (*CostasLoop4) AdvanceLoop 

func (cl *CostasLoop4) AdvanceLoop(err float32)

func (*CostasLoop4) GetAlpha 

func (cl *CostasLoop4) GetAlpha() float32

func (*CostasLoop4) GetAverageError 

func (cl *CostasLoop4) GetAverageError() float32

func (*CostasLoop4) GetBeta 

func (cl *CostasLoop4) GetBeta() float32

func (*CostasLoop4) GetDampingFactor 

func (cl *CostasLoop4) GetDampingFactor() float32

func (*CostasLoop4) GetError 

func (cl *CostasLoop4) GetError() float32

func (*CostasLoop4) GetFrequency 

func (cl *CostasLoop4) GetFrequency() float32

func (*CostasLoop4) GetFrequencyHz 

func (cl *CostasLoop4) GetFrequencyHz(sampleRate float32) float32

func (*CostasLoop4) GetFrequencyShift 

func (cl *CostasLoop4) GetFrequencyShift() []float32

func (*CostasLoop4) GetLoopBandwidth 

func (cl *CostasLoop4) GetLoopBandwidth() float32

func (*CostasLoop4) GetMaxRelativeFrequency 

func (cl *CostasLoop4) GetMaxRelativeFrequency() float32

func (*CostasLoop4) GetMinRelativeFrequency 

func (cl *CostasLoop4) GetMinRelativeFrequency() float32

func (*CostasLoop4) GetPhase 

func (cl *CostasLoop4) GetPhase() float32

func (*CostasLoop4) PredictOutputSize 

func (cl *CostasLoop4) PredictOutputSize(input int) int

func (*CostasLoop4) Reset 

func (cl *CostasLoop4) Reset()

func (*CostasLoop4) SetAlpha 

func (cl *CostasLoop4) SetAlpha(alpha float32) error

func (*CostasLoop4) SetBeta 

func (cl *CostasLoop4) SetBeta(beta float32) error

func (*CostasLoop4) SetDampingFactor 

func (cl *CostasLoop4) SetDampingFactor(df float32) error

func (*CostasLoop4) SetFrequency 

func (cl *CostasLoop4) SetFrequency(freq float32)

func (*CostasLoop4) SetLoopBandwidth 

func (cl *CostasLoop4) SetLoopBandwidth(bw float32) error

func (*CostasLoop4) SetPhase 

func (cl *CostasLoop4) SetPhase(phase float32)

func (*CostasLoop4) SetRelativeMaxFrequency 

func (cl *CostasLoop4) SetRelativeMaxFrequency(freq float32)

func (*CostasLoop4) SetRelativeMinFrequency 

func (cl *CostasLoop4) SetRelativeMinFrequency(freq float32)

func (*CostasLoop4) UpdateGains 

func (cl *CostasLoop4) UpdateGains()

func (*CostasLoop4) Work 

func (cl *CostasLoop4) Work(input []complex64) []complex64

func (*CostasLoop4) WorkBuffer 

func (cl *CostasLoop4) WorkBuffer(input, output []complex64) int

type CostasLoop8 

type CostasLoop8 struct {
	// contains filtered or unexported fields
}

endregion region 8th Order Costas Loop

func (*CostasLoop8) AdvanceLoop 

func (cl *CostasLoop8) AdvanceLoop(err float32)

func (*CostasLoop8) GetAlpha 

func (cl *CostasLoop8) GetAlpha() float32

func (*CostasLoop8) GetAverageError 

func (cl *CostasLoop8) GetAverageError() float32

func (*CostasLoop8) GetBeta 

func (cl *CostasLoop8) GetBeta() float32

func (*CostasLoop8) GetDampingFactor 

func (cl *CostasLoop8) GetDampingFactor() float32

func (*CostasLoop8) GetError 

func (cl *CostasLoop8) GetError() float32

func (*CostasLoop8) GetFrequency 

func (cl *CostasLoop8) GetFrequency() float32

func (*CostasLoop8) GetFrequencyHz 

func (cl *CostasLoop8) GetFrequencyHz(sampleRate float32) float32

func (*CostasLoop8) GetFrequencyShift 

func (cl *CostasLoop8) GetFrequencyShift() []float32

func (*CostasLoop8) GetLoopBandwidth 

func (cl *CostasLoop8) GetLoopBandwidth() float32

func (*CostasLoop8) GetMaxRelativeFrequency 

func (cl *CostasLoop8) GetMaxRelativeFrequency() float32

func (*CostasLoop8) GetMinRelativeFrequency 

func (cl *CostasLoop8) GetMinRelativeFrequency() float32

func (*CostasLoop8) GetPhase 

func (cl *CostasLoop8) GetPhase() float32

func (*CostasLoop8) PredictOutputSize 

func (cl *CostasLoop8) PredictOutputSize(input int) int

func (*CostasLoop8) Reset 

func (cl *CostasLoop8) Reset()

func (*CostasLoop8) SetAlpha 

func (cl *CostasLoop8) SetAlpha(alpha float32) error

func (*CostasLoop8) SetBeta 

func (cl *CostasLoop8) SetBeta(beta float32) error

func (*CostasLoop8) SetDampingFactor 

func (cl *CostasLoop8) SetDampingFactor(df float32) error

func (*CostasLoop8) SetFrequency 

func (cl *CostasLoop8) SetFrequency(freq float32)

func (*CostasLoop8) SetLoopBandwidth 

func (cl *CostasLoop8) SetLoopBandwidth(bw float32) error

func (*CostasLoop8) SetPhase 

func (cl *CostasLoop8) SetPhase(phase float32)

func (*CostasLoop8) SetRelativeMaxFrequency 

func (cl *CostasLoop8) SetRelativeMaxFrequency(freq float32)

func (*CostasLoop8) SetRelativeMinFrequency 

func (cl *CostasLoop8) SetRelativeMinFrequency(freq float32)

func (*CostasLoop8) UpdateGains 

func (cl *CostasLoop8) UpdateGains()

func (*CostasLoop8) Work 

func (cl *CostasLoop8) Work(input []complex64) []complex64

func (*CostasLoop8) WorkBuffer 

func (cl *CostasLoop8) WorkBuffer(input, output []complex64) int

type DCFilter 

type DCFilter struct {
	// contains filtered or unexported fields
}

func MakeDCFilter 

func MakeDCFilter() *DCFilter

func (*DCFilter) PredictOutputSize 

func (dc *DCFilter) PredictOutputSize(inputLength int) int

func (*DCFilter) Work 

func (dc *DCFilter) Work(data []complex64) []complex64

func (*DCFilter) WorkBuffer 

func (dc *DCFilter) WorkBuffer(input, output []complex64) int

func (*DCFilter) WorkInline 

func (dc *DCFilter) WorkInline(data []complex64)

type Decimator 

type Decimator struct {
	// contains filtered or unexported fields
}

func MakeDecimator 

func MakeDecimator(decimationRatio int) *Decimator

func (*Decimator) PredictOutputSize 

func (f *Decimator) PredictOutputSize(inputLength int) int

func (*Decimator) Work 

func (f *Decimator) Work(data []complex64) []complex64

func (*Decimator) WorkBuffer 

func (f *Decimator) WorkBuffer(input, output []complex64) int

type FMDeemph 

type FMDeemph struct {
	// contains filtered or unexported fields
}

func MakeFMDeemph 

func MakeFMDeemph(tau, sampleRate float32) *FMDeemph

func (*FMDeemph) Work 

func (f *FMDeemph) Work(data []float32) []float32

func (*FMDeemph) WorkBuffer 

func (f *FMDeemph) WorkBuffer(input, output []float32) int

type FeedForwardAGC 

type FeedForwardAGC struct {
	// contains filtered or unexported fields
}

func MakeFeedForwardAGC 

func MakeFeedForwardAGC(numSamples int, reference float32) *FeedForwardAGC

func (*FeedForwardAGC) PredictOutputSize 

func (dc *FeedForwardAGC) PredictOutputSize(inputLength int) int

func (*FeedForwardAGC) Work 

func (f *FeedForwardAGC) Work(input []complex64) []complex64

func (*FeedForwardAGC) WorkBuffer 

func (f *FeedForwardAGC) WorkBuffer(input, output []complex64) int

type FirFilter 

type FirFilter struct {
	// contains filtered or unexported fields
}

func MakeDecimationFirFilter 

func MakeDecimationFirFilter(decimation int, taps []float32) *FirFilter

func MakeFirFilter 

func MakeFirFilter(taps []float32) *FirFilter

func (*FirFilter) Filter 

func (f *FirFilter) Filter(data []complex64, length int)

func (*FirFilter) FilterBuffer 

func (f *FirFilter) FilterBuffer(input, output []complex64) int

func (*FirFilter) FilterDecimate 

func (f *FirFilter) FilterDecimate(data []complex64, decimate int, length int)

func (*FirFilter) FilterDecimateBuffer 

func (f *FirFilter) FilterDecimateBuffer(input, output []complex64, decimate int) int

func (*FirFilter) FilterDecimateOut 

func (f *FirFilter) FilterDecimateOut(data []complex64, decimate int) []complex64

func (*FirFilter) FilterOut 

func (f *FirFilter) FilterOut(data []complex64) []complex64

func (*FirFilter) FilterSingle 

func (f *FirFilter) FilterSingle(data []complex64) complex64

func (*FirFilter) PredictOutputSize 

func (f *FirFilter) PredictOutputSize(inputLength int) int

func (*FirFilter) SetTaps 

func (f *FirFilter) SetTaps(taps []float32)

func (*FirFilter) Work 

func (f *FirFilter) Work(data []complex64) []complex64

func (*FirFilter) WorkBuffer 

func (f *FirFilter) WorkBuffer(input, output []complex64) int

type Float322ByteWorker 

type Float322ByteWorker interface {
	Work(input []float32) []byte
	WorkBuffer(input []float32, output []byte) int
	PredictOutputSize(inputLength int) int
}

type Float32Worker 

type Float32Worker interface {
	Work(input []float32) []float32
	WorkBuffer(input, output []float32) int
	PredictOutputSize(inputLength int) int
}

type FloatDecimator 

type FloatDecimator struct {
	// contains filtered or unexported fields
}

func MakeFloatDecimator 

func MakeFloatDecimator(decimationRatio int) *FloatDecimator

func (*FloatDecimator) PredictOutputSize 

func (f *FloatDecimator) PredictOutputSize(inputLength int) int

func (*FloatDecimator) Work 

func (f *FloatDecimator) Work(data []float32) []float32

func (*FloatDecimator) WorkBuffer 

func (f *FloatDecimator) WorkBuffer(input, output []float32) int

type FloatFirFilter 

type FloatFirFilter struct {
	// contains filtered or unexported fields
}

func MakeDecimationFloatFirFilter 

func MakeDecimationFloatFirFilter(decimation int, taps []float32) *FloatFirFilter

func MakeFloatFirFilter 

func MakeFloatFirFilter(taps []float32) *FloatFirFilter

func (*FloatFirFilter) Filter 

func (f *FloatFirFilter) Filter(data []float32, length int)

func (*FloatFirFilter) FilterBuffer 

func (f *FloatFirFilter) FilterBuffer(input, output []float32) int

func (*FloatFirFilter) FilterDecimate 

func (f *FloatFirFilter) FilterDecimate(data []float32, decimate int, length int)

func (*FloatFirFilter) FilterDecimateBuffer 

func (f *FloatFirFilter) FilterDecimateBuffer(input, output []float32, decimate int) int

func (*FloatFirFilter) FilterDecimateOut 

func (f *FloatFirFilter) FilterDecimateOut(data []float32, decimate int) []float32

func (*FloatFirFilter) FilterOut 

func (f *FloatFirFilter) FilterOut(data []float32) []float32

func (*FloatFirFilter) FilterSingle 

func (f *FloatFirFilter) FilterSingle(data []float32) float32

func (*FloatFirFilter) PredictOutputSize 

func (f *FloatFirFilter) PredictOutputSize(inputLength int) int

func (*FloatFirFilter) SetTaps 

func (f *FloatFirFilter) SetTaps(taps []float32)

func (*FloatFirFilter) Work 

func (f *FloatFirFilter) Work(data []float32) []float32

func (*FloatFirFilter) WorkBuffer 

func (f *FloatFirFilter) WorkBuffer(input, output []float32) int

type FloatInterpolator 

type FloatInterpolator struct {
	// contains filtered or unexported fields
}

func MakeFloatInterpolator 

func MakeFloatInterpolator(interpolationRatio int) *FloatInterpolator

func (*FloatInterpolator) PredictOutputSize 

func (f *FloatInterpolator) PredictOutputSize(inputLength int) int

func (*FloatInterpolator) Work 

func (f *FloatInterpolator) Work(data []float32) []float32

func (*FloatInterpolator) WorkBuffer 

func (f *FloatInterpolator) WorkBuffer(input, output []float32) int

type FloatRationalResampler 

type FloatRationalResampler struct {
	// contains filtered or unexported fields
}

func MakeFloatRationalResampler 

func MakeFloatRationalResampler(interpolationRatio, decimationRatio int) *FloatRationalResampler

func (*FloatRationalResampler) PredictOutputSize 

func (f *FloatRationalResampler) PredictOutputSize(inputLength int) int

func (*FloatRationalResampler) Work 

func (f *FloatRationalResampler) Work(data []float32) []float32

func (*FloatRationalResampler) WorkBuffer 

func (f *FloatRationalResampler) WorkBuffer(input, output []float32) int

type FloatResampler 

type FloatResampler struct {
	// contains filtered or unexported fields
}

FloatResampler is a Polyphase Resampler based on GNU Radio Implementation

func MakeFloatResampler 

func MakeFloatResampler(filterSize int, rate float32) *FloatResampler

func (*FloatResampler) PredictOutputSize 

func (f *FloatResampler) PredictOutputSize(inputLength int) int

func (*FloatResampler) Work 

func (f *FloatResampler) Work(data []float32) []float32

func (*FloatResampler) WorkBuffer 

func (f *FloatResampler) WorkBuffer(input, output []float32) int

type FrequencyTranslator 

type FrequencyTranslator struct {
	// contains filtered or unexported fields
}

func MakeFrequencyTranslator 

func MakeFrequencyTranslator(decimation int, centerFrequency, sampleRate float32, taps []float32) *FrequencyTranslator

func (*FrequencyTranslator) GetDecimation 

func (ft *FrequencyTranslator) GetDecimation() int

func (*FrequencyTranslator) GetFrequency 

func (ft *FrequencyTranslator) GetFrequency() float32

func (*FrequencyTranslator) PredictOutputSize 

func (ft *FrequencyTranslator) PredictOutputSize(inputLength int) int

func (*FrequencyTranslator) SetDecimation 

func (ft *FrequencyTranslator) SetDecimation(decimation int)

func (*FrequencyTranslator) SetFrequency 

func (ft *FrequencyTranslator) SetFrequency(frequency float32)

func (*FrequencyTranslator) Work 

func (ft *FrequencyTranslator) Work(data []complex64) []complex64

func (*FrequencyTranslator) WorkBuffer 

func (ft *FrequencyTranslator) WorkBuffer(input, output []complex64) int

type IIRFilter 

type IIRFilter struct {
	// contains filtered or unexported fields
}

func MakeIIRFilter 

func MakeIIRFilter(ataps, btaps []float32) *IIRFilter

func (*IIRFilter) Filter 

func (f *IIRFilter) Filter(input float32) float32

func (*IIRFilter) FilterArray 

func (f *IIRFilter) FilterArray(input []float32) []float32

func (*IIRFilter) FilterArrayBuffer 

func (f *IIRFilter) FilterArrayBuffer(input, output []float32) int

type Interpolator 

type Interpolator struct {
	// contains filtered or unexported fields
}

func MakeInterpolator 

func MakeInterpolator(interpolationRatio int) *Interpolator

func (*Interpolator) PredictOutputSize 

func (f *Interpolator) PredictOutputSize(inputLength int) int

func (*Interpolator) Work 

func (f *Interpolator) Work(data []complex64) []complex64

func (*Interpolator) WorkBuffer 

func (f *Interpolator) WorkBuffer(input, output []complex64) int

type NCO 

type NCO struct {
	// contains filtered or unexported fields
}

NCO is a Numeric Controlled Oscillator Based on GNURadio Implementation

func MakeNCO 

func MakeNCO() *NCO

func (*NCO) AdjustFrequency 

func (nco *NCO) AdjustFrequency(deltaRate float32)

AdjustFrequency Increments / Decrements the phase increment. In radians / step

func (*NCO) AdjustPhase 

func (nco *NCO) AdjustPhase(deltaAngle float32)

AdjustPhase Increments / decrements current phase. In radians

func (*NCO) Complex64SinCos 

func (nco *NCO) Complex64SinCos(n int, amplitude float32) []complex64

Float32Sin Compute N elements for a float32 array sine wave

func (*NCO) Float32Cos 

func (nco *NCO) Float32Cos(n int, amplitude float32) []float32

Float32Cos Compute N elements for a float32 array cosine wave

func (*NCO) Float32Sin 

func (nco *NCO) Float32Sin(n int, amplitude float32) []float32

Float32Sin Compute N elements for a float32 array sine wave

func (*NCO) GetPhase 

func (nco *NCO) GetPhase() float32

GetPhase returns the current phase value in radians

func (*NCO) GetPhaseIncrement 

func (nco *NCO) GetPhaseIncrement() float32

GetPhaseIncrement returns the phase increment value in radians / step

func (*NCO) SetFrequency 

func (nco *NCO) SetFrequency(rate float32)

SetFrequency Sets the Phase Increment in Radians / step

func (*NCO) SetPhase 

func (nco *NCO) SetPhase(angle float32)

SetPhase in Radians

func (*NCO) Step 

func (nco *NCO) Step()

Step makes a single step in NCO

func (*NCO) StepN 

func (nco *NCO) StepN(n int)

StepN makes N steps in NCO

type QuadDemod 

type QuadDemod struct {
	// contains filtered or unexported fields
}

func MakeQuadDemod 

func MakeQuadDemod(gain float32) *QuadDemod

func (*QuadDemod) PredictOutputSize 

func (f *QuadDemod) PredictOutputSize(inputLength int) int

func (*QuadDemod) Work 

func (f *QuadDemod) Work(data []complex64) []float32

func (*QuadDemod) WorkBuffer 

func (f *QuadDemod) WorkBuffer(input []complex64, output []float32) int

type RationalResampler 

type RationalResampler struct {
	// contains filtered or unexported fields
}

func MakeRationalResampler 

func MakeRationalResampler(interpolationRatio, decimationRatio int) *RationalResampler

func (*RationalResampler) PredictOutputSize 

func (f *RationalResampler) PredictOutputSize(inputLength int) int

func (*RationalResampler) Work 

func (f *RationalResampler) Work(data []complex64) []complex64

func (*RationalResampler) WorkBuffer 

func (f *RationalResampler) WorkBuffer(input, output []complex64) int

type Rotator 

type Rotator struct {
	// contains filtered or unexported fields
}

func MakeRotator 

func MakeRotator() *Rotator

func MakeRotatorWithFrequency 

func MakeRotatorWithFrequency(centerFrequency, sampleRate float32) *Rotator

func (*Rotator) PredictOutputSize 

func (r *Rotator) PredictOutputSize(inputLength int) int

func (*Rotator) Reset 

func (r *Rotator) Reset()

func (*Rotator) Rotate 

func (r *Rotator) Rotate(d complex64) complex64

func (*Rotator) SetCenterFrequency 

func (r *Rotator) SetCenterFrequency(centerFrequency, sampleRate float32)

func (*Rotator) SetPhase 

func (r *Rotator) SetPhase(p complex64)

func (*Rotator) SetPhaseIncrement 

func (r *Rotator) SetPhaseIncrement(increment complex64)

func (*Rotator) Work 

func (r *Rotator) Work(data []complex64) []complex64

func (*Rotator) WorkBuffer 

func (r *Rotator) WorkBuffer(input, output []complex64) int

func (*Rotator) WorkInline 

func (r *Rotator) WorkInline(data []complex64)

type SimpleAGC 

type SimpleAGC struct {
	// contains filtered or unexported fields
}

func MakeSimpleAGC 

func MakeSimpleAGC(rate, reference, gain, maxGain float32) *SimpleAGC

func MakeSimpleAGCSimple 

func MakeSimpleAGCSimple() *SimpleAGC

func (*SimpleAGC) PredictOutputSize 

func (sa *SimpleAGC) PredictOutputSize(inputLength int) int

func (*SimpleAGC) Work 

func (sa *SimpleAGC) Work(input []complex64) []complex64

func (*SimpleAGC) WorkBuffer 

func (sa *SimpleAGC) WorkBuffer(input, output []complex64) int

type SinglePoleIIRFilter 

type SinglePoleIIRFilter struct {
	// contains filtered or unexported fields
}

func MakeSinglePoleIIRFilter 

func MakeSinglePoleIIRFilter(alpha float32) *SinglePoleIIRFilter

func (*SinglePoleIIRFilter) Filter 

func (f *SinglePoleIIRFilter) Filter(input float32) float32

func (*SinglePoleIIRFilter) FilterArray 

func (f *SinglePoleIIRFilter) FilterArray(input []float32) []float32

func (*SinglePoleIIRFilter) FilterArrayBuffer 

func (f *SinglePoleIIRFilter) FilterArrayBuffer(input, output []float32) int

func (*SinglePoleIIRFilter) GetPreviousOutput 

func (f *SinglePoleIIRFilter) GetPreviousOutput() float32

func (*SinglePoleIIRFilter) SetTaps 

func (f *SinglePoleIIRFilter) SetTaps(alpha float32)

type Squelch 

type Squelch struct {
	// contains filtered or unexported fields
}

func MakeSquelch 

func MakeSquelch(threshold, alpha float32) *Squelch

func (*Squelch) GetAvgLevel 

func (f *Squelch) GetAvgLevel() float32

func (*Squelch) GetThreshold 

func (f *Squelch) GetThreshold() float32

func (*Squelch) IsMuted 

func (f *Squelch) IsMuted() bool

func (*Squelch) PredictOutputSize 

func (f *Squelch) PredictOutputSize(inputLength int) int

func (*Squelch) SetAlpha 

func (f *Squelch) SetAlpha(alpha float32)

func (*Squelch) SetThreshold 

func (f *Squelch) SetThreshold(dB float32)

func (*Squelch) Work 

func (f *Squelch) Work(data []complex64) []complex64

func (*Squelch) WorkBuffer 

func (f *Squelch) WorkBuffer(input, output []complex64) int

Source Files

View all Source files

Directories

Path Synopsis
binarySlicer
Package fft provides forward and inverse fast Fourier transform functions.
 Package fft provides forward and inverse fast Fourier transform functions.
amd64

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