lkasami.h

在linux系统下开发研究移动通信的工具型代码

#ifndef _KASAMIL_H
#define _KASAMIL_H

/*
 * $Log: lkasami.h,v $
 * Revision 1.1  2000/05/03 14:30:04  bjc97r
 * Initial revision
 *
 */

#include "mseq.h"
#include "lmseq.h"

typedef struct {
  LMseq *mseq0; /* main m-sequence generator */
  Mseq  *mseq1; /* sub  m-sequence generator */
} LKasami;

/*
 * It creates a Kasami code generator. Only the generator polynomial 
 * for the main m-sequence is specified through the arguments. 
 * The sub-sequence polynomial is calculated internally based on the
 * main polynomial. The relative shift of the subsequence is controlled
 * by the subsequence 'seed' argument. The initial state of the main
 * m-sequence generator is fixed to 1.
 */
LKasami *lkasami_create( unsigned deg, char *poly, unsigned long seed );

/*
 * lkasami_free() deallocates the memory space for 
 * the Kasami sequence generators.
 */
void lkasami_free( LKasami *kasami );

/* lkasami() gives the next Kasami sequence in unipolar form, ie 1 or 0. */
char lkasami( LKasami *id );


#endif  /* _KASAMIL_H */