ekasami.h

在linux系统下开发研究移动通信的工具型代码

#ifndef _EKASAMI_H
#define _EKASAMI_H

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

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

typedef struct {
  LMseq *mseq0;  /* 1st m-sequence generator */
  LMseq *mseq1;  /* 2nd m-sequence generator */
  Mseq  *mseq2;  /* sub m-sequence generator */
} EKasami;


/*
 * It create a eKasami code generator with a pair of preferred m-sequences
 * and a decimated sequence with the given seeds. The Kasami code generator
 * id is returned.
 */
EKasami *ekasami_create( unsigned deg, char *p1, char *p2,
			 u2long s1, u2long s2, unsigned long ssub );

void ekasami_free( EKasami *kasami );

/*
 * ekasami() gives the next long Extended Kasami sequence in unipolar form,
 * ie 1 or 0.
 */
char ekasami( EKasami *kasami );

#endif /* _EKASAMI_H */