fec.h File Reference

Utilities for the convolutional encoder of the libswiftnav library. More...

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Classes
struct	v27_poly_t
struct	v27_decision_t
struct	v27_t

Macros
#define	V27POLYA   0x4f
#define	V27POLYB   0x6d

Functions
void	v27_poly_init (v27_poly_t *poly, const signed char polynomial[2])
void	v27_init (v27_t *v, v27_decision_t *decisions, unsigned int decisions_count, const v27_poly_t *poly, unsigned char initial_state)
void	v27_update (v27_t *v, const unsigned char *syms, int nbits)
void	v27_chainback_fixed (v27_t *v, unsigned char *data, unsigned int nbits, unsigned char final_state)
void	v27_chainback_likely (v27_t *v, unsigned char *data, unsigned int nbits)

Detailed Description

Utilities for the convolutional encoder of the libswiftnav library.

Author

Phil Karn, KA9Q

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GNSS-SDR is a Global Navigation Satellite System software-defined receiver. This file is part of GNSS-SDR.

This file was originally borrowed from libswiftnav https://github.com/swift-nav/libswiftnav, a portable C library implementing GNSS related functions and algorithms, and then modified by J. Arribas and C. Fernandez

Copyright (C) 2004, Phil Karn, KA9Q

SPDX-License-Identifier: LGPL-3.0-only

Definition in file fec.h.

Macro Definition Documentation

V27POLYA

#define V27POLYA   0x4f

Definition at line 29 of file fec.h.

V27POLYB

#define V27POLYB   0x6d

Definition at line 30 of file fec.h.