gr::satnogs::cw_decoder Class Reference

CW decoder based on overlapping FFT. More...

#include <cw_decoder.h>

Inheritance diagram for gr::satnogs::cw_decoder:

Public Types
using	sptr = std::shared_ptr< cw_decoder >

Public Member Functions
	cw_decoder (double samp_rate, int fft_len, int overlapping, float wpm, float snr, float confidence, size_t channels, size_t min_frame_size, size_t max_frame_size)
	~cw_decoder ()
decoder_status_t	decode (const void *in, int len)
void	reset ()
size_t	input_multiple () const
Public Member Functions inherited from gr::satnogs::decoder
int	unique_id () const
	decoder (const std::string &name, const std::string &version, int input_item_size, size_t max_frame_len=8192)
virtual	~decoder ()
size_t	max_frame_len () const
int	sizeof_input_item () const
std::string	name () const
std::string	version () const

Static Public Member Functions
static sptr	make (double samp_rate, int fft_len, int overlapping, float wpm=22.0, float snr=10.0, float confidence=0.9, size_t channels=16, size_t min_frame_size=5, size_t max_frame_size=256)

Additional Inherited Members
Static Public Attributes inherited from gr::satnogs::decoder
static int	base_unique_id
Protected Member Functions inherited from gr::satnogs::decoder
void	incr_nitems_read (size_t nitems)
uint64_t	nitems_read () const
Protected Attributes inherited from gr::satnogs::decoder
gr::logger_ptr	d_logger

Detailed Description

CW decoder based on overlapping FFT.

Member Typedef Documentation

sptr

using gr::satnogs::cw_decoder::sptr = std::shared_ptr<cw_decoder>

Constructor & Destructor Documentation

cw_decoder()

gr::satnogs::cw_decoder::cw_decoder	(	double	samp_rate,
		int	fft_len,
		int	overlapping,
		float	wpm,
		float	snr,
		float	confidence,
		size_t	channels,
		size_t	min_frame_size,
		size_t	max_frame_size
	)

~cw_decoder()

gr::satnogs::cw_decoder::~cw_decoder

(

)

Member Function Documentation

decode()

decoder_status_t gr::satnogs::cw_decoder::decode ( const void *  in, int  nitems  )

virtual

Decodes a buffer of input items contained in the in buffer. This method is called continuously by the frame_decoder. Based on the returned status data, the frame_decoder() instructs properly the GNU Radio scheduler and/or propagates decoded data.

As the number of input items may not enough to decode a frame, each decoder should keep internal state, so decoding can be accomplished after an arbitrary number of calls to this method

Parameters

in	the input items
nitems	the number of input items contained in the in buffer

Returns

the status of the decoder after the call of this method. For more information refer to decoder_status()

Implements gr::satnogs::decoder.

input_multiple()

size_t gr::satnogs::cw_decoder::input_multiple ( ) const

virtual

Reimplemented from gr::satnogs::decoder.

make()

static sptr gr::satnogs::cw_decoder::make ( double  samp_rate, int  fft_len, int  overlapping, float  wpm = 22.0, float  snr = 10.0, float  confidence = 0.9, size_t  channels = 16, size_t  min_frame_size = 5, size_t  max_frame_size = 256  )

static

reset()

void gr::satnogs::cw_decoder::reset ( )

virtual

Resets the internal state of the decoder to the initial defaults

Implements gr::satnogs::decoder.

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

• cw_decoder.h