dspf_sp_lms.h

详细的OFDM设计过程

/* ======================================================================== */
/*  TEXAS INSTRUMENTS, INC.                                                 */
/*                                                                          */
/*  NAME                                                                    */
/*      DSPF_sp_lms - Implementation of the floating point LMS algorithm    */
/*                                                                          */
/* USAGE                                                                    */
/*                                                                          */
/*     This routine is C callable, and has the following C prototype:       */
/* float DSPF_sp_lms (float *x,                                             */
/*        float *h,                                                         */
/*        float *desired,                                                   */
/*        float *r,                                                         */
/*        float adaptrate,                                                  */
/*        float error,                                                      */
/*        int nh,                                                           */
/*        int nr                                                            */
/*        )                                                                 */
/*                                                                          */
/*      x        :  Pointer to input samples                                */
/*      h        :  Pointer to the coefficient array                        */
/*      desired  :  Pointer to the desired output array                     */
/*      r        :  Pointer to filtered output array                        */
/*      adaptrate:  Adaptation rate                                         */
/*      error    :  Initial error                                           */
/*      nh        :  Number of coefficients                                 */
/*      nr        :  Number of output samples                               */
/*                                                                          */
/* DESCRIPTION                                                              */
/*                                                                          */
/*  The DSPF_sp_lms implements an LMS adaptive filter. Given an actual input*/
/*  signal and a desired input signal, the filter produces an output        */
/*  signal, the final coefficient values and returns the final output       */
/*  error signal.                                                           */
/*                                                                          */
/* ------------------------------------------------------------------------ */
/*            Copyright (c) 2003 Texas Instruments, Incorporated.           */
/*                           All Rights Reserved.                           */
/* ======================================================================== */
#ifndef DSPF_SP_LMS_
#define DSPF_SP_LMS_ 1

float DSPF_sp_lms(float *x,             /* Pointer to input samples      */  
                 float *h,           /* Pointer to the coefficient array */  
                 float *desired,     /* Pointer to the desired output array */  
                 float *r,           /* Pointer to filtered output array */  
                 float adaptrate,    /* Adaptation rate                  */  
                 float error,        /* Initial error                    */  
                 int nh,             /* Number of coefficients           */  
                 int nr              /* Number of output samples         */  
                 );             
                                                                           
   
#endif
/* ========================================================================*/
/*  End of file:  dspf_sp_lms.h                                            */
/* ------------------------------------------------------------------------*/
/*            Copyright (c) 2003 Texas Instruments, Incorporated.          */
/*                           All Rights Reserved.                          */
/* ========================================================================*/