AX.100 mode 6 decoder. More...

#include <ax100_mode6.h>

Inheritance diagram for gr::satnogs::ax100_mode6:

Public Types
using	sptr = std::shared_ptr< ax100_mode6 >

Public Member Functions
	ax100_mode6 (crc::type crc, whitening::sptr descrambler, bool ax25_descramble)

	~ax100_mode6 ()

decoder_status_t	decode (const void *in, int len)

void	reset ()

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 ()

virtual decoder_status_t	decode (const void *in, int nitems)=0

virtual void	reset ()=0

virtual size_t	input_multiple () const

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 (crc::type crc=crc::type::CRC32_C, whitening::sptr descrambler=whitening::make_ccsds(), bool ax25_descramble=true)

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

AX.100 mode 6 decoder.

Mode 6 Decoder for the AX100 modem of GomSpace.

In this particular mode, the modem encapsulates the payload inside an AX.25 frame. The payload is appended with a Castagnoli CRC32, scrambled with a CCSDS scrambler and encoded using the CCSDS compliant Reed Solomon.

This non-sense framing scheme is used mainly for getting data from legacy ham stations receiving and reporting AX.25 frames.

The implementation drops any kind of AX.25 information and does not check the 16-bit CRC, allowing the Reed Solomon to correct any error bits.

Member Typedef Documentation

◆ sptr

using gr::satnogs::ax100_mode6::sptr = std::shared_ptr<ax100_mode6>

Constructor & Destructor Documentation

◆ ax100_mode6()

gr::satnogs::ax100_mode6::ax100_mode6	(	crc::type	crc,
		whitening::sptr	descrambler,
		bool	ax25_descramble
	)

◆ ~ax100_mode6()

gr::satnogs::ax100_mode6::~ax100_mode6 ( )

Member Function Documentation

◆ decode()

decoder_status_t gr::satnogs::ax100_mode6::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.

◆ make()

static sptr gr::satnogs::ax100_mode6::make	(	crc::type	crc = `crc::type::CRC32_C`,
		whitening::sptr	descrambler = `whitening::make_ccsds()`,
		bool	ax25_descramble = `true`
	)

static

◆ reset()

void gr::satnogs::ax100_mode6::reset ( )

virtual

Resets the internal state of the decoder to the initial defaults

Implements gr::satnogs::decoder.

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

ax100_mode6.h

Public Types

Public Member Functions

Static Public Member Functions

Additional Inherited Members