get_ovsf_code.c

来自「matlab实现wcdma的全过程」· C语言 代码 · 共 84 行

/*
 | Project:     WCDMA simulation environment
 | Module:    
 | Author:      Maarit Melvasalo
 | Date:        June 1999
 |
 | History:
 |              June 11,  1999 Maarit Melvasalo 
 |              
 |
 | Desc:         
 |              This is a matlab function which return 
 |              a OVSF code for given code length and code index. 
 |
 | Limitations:
 |              Code length must be in between 2^2 ... 2^8
 |              The index must be greater tahn 0 and less or equal
 |              to code length      
 |        
 | Depends on files:
 |              code.c  and code.h     
 |     
 |  Function call: 
 |           [code, side_info] = get_ovsf_code(code_length, index)
 |         
 |           side_info[0] = code_length 
 |           side_info[1] = code index         
 |
 | See also function: get_ovsf_code_indexes
 |
 | Copyright disclaimer:
 |   This software was developed at the National Institute of Standards
 |   and Technology by employees of the Federal Government in the course
 |   of their official duties. Pursuant to title 17 Section 105 of the
 |   United States Code this software is not subject to copyright
 |   protection and is in the public domain.
 |
 |   We would appreciate acknowledgement if the software is used.
 |
 */
#include "mex.h"


void mexFunction(
		 int nlhs, mxArray *plhs[], 
		 int nrhs, 
		 const mxArray *prhs[])
{
  int code_len,tmp, index ;
  double *code, *side;
  int *code_tmp;

  /*  get the scalar input x */
  code_len = (int)mxGetScalar(prhs[0]);
  index = (int)mxGetScalar(prhs[1]);
    
  /* Create a matrix for the return argument */
  plhs[0] = mxCreateDoubleMatrix(1, code_len, mxREAL);/**/
  plhs[1] = mxCreateDoubleMatrix(1, 2, mxREAL);/**/

  
  code = mxGetPr(plhs[0]);
  side = mxGetPr(plhs[1]);


  tmp =  wcdma_get_ovsf_code_double(code_len,index,code);/**/

  side[0] = code_len;
  side[1] = index;

return;
}

/* [EOF] complex.c */