kasami.h

kasami伪码产生器

#ifndef _KASAMI_H
#define _KASAMI_H

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

#include "mseq.h"

typedef struct {
  Mseq *mseq0; // 1st m-sequence generator
  Mseq *mseq1; // 2nd m-sequence generator
} Kasami;

// 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.
Kasami *kasami_create( unsigned deg, ulong poly, ulong seed );

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

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


#endif // _KASAMI_H