SpectrumAnalyser Class Reference

A class to generate frequency spectrum plots. More...

#include <SpectrumAnalyser.h>

Collaboration diagram for SpectrumAnalyser:

Public Member Functions
	SpectrumAnalyser (uint32_t n, double bandwidth)
	Constructor. More...
	~SpectrumAnalyser ()
	Destructor. More...
void	process (IqData *x)
	Process spectrum data. More...

Private Attributes
uint32_t	n
	Number of samples on input. More...
double	bandwidth
	Minimum bandwidth of frequency bin (Hz). More...
uint32_t	decimation
	Decimation factor. More...
fftw_plan	fftX
	FFTW plans for ambiguity processing. More...
std::complex< double > *	dataX
	FFTW storage for ambiguity processing. More...
uint32_t	nfft
	Number of samples to perform FFT. More...
uint32_t	nSpectrum
	Number of samples in decimated spectrum. More...
double	resolution
	Resolution of spectrum (Hz). More...

Detailed Description

A class to generate frequency spectrum plots.

Simple decimate and FFT on CPI IQ data for frequency spectrum.

Author

30hours

Todo:

Potentially create k spectrum plots from sub-CPIs.

FFT with HammingNumber class.

Constructor & Destructor Documentation

SpectrumAnalyser()

SpectrumAnalyser::SpectrumAnalyser	(	uint32_t	n,
		double	bandwidth
	)

Constructor.

Parameters

n	Number of samples on input.
bandwidth	Minimum bandwidth of frequency bin (Hz).

Returns

The object.

~SpectrumAnalyser()

SpectrumAnalyser::~SpectrumAnalyser

(

)

Destructor.

Returns

Void.

Member Function Documentation

process()

void SpectrumAnalyser::process

(

IqData *

x

)

Process spectrum data.

Parameters

x	Reference samples.

Returns

Void.

Member Data Documentation

bandwidth

double SpectrumAnalyser::bandwidth

private

Minimum bandwidth of frequency bin (Hz).

dataX

std::complex<double>* SpectrumAnalyser::dataX

private

FFTW storage for ambiguity processing.

decimation

uint32_t SpectrumAnalyser::decimation

private

Decimation factor.

fftX

fftw_plan SpectrumAnalyser::fftX

private

FFTW plans for ambiguity processing.

n

uint32_t SpectrumAnalyser::n

private

Number of samples on input.

nfft

uint32_t SpectrumAnalyser::nfft

private

Number of samples to perform FFT.

nSpectrum

uint32_t SpectrumAnalyser::nSpectrum

private

Number of samples in decimated spectrum.

resolution

double SpectrumAnalyser::resolution

private

Resolution of spectrum (Hz).

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The documentation for this class was generated from the following files:

• src/process/spectrum/SpectrumAnalyser.h
• src/process/spectrum/SpectrumAnalyser.cpp