cfir1_c.mht

来自「常用的DSP算法集锦」· MHT 代码 · 共 40 行

MHT
40
字号
From: <由 Microsoft Internet Explorer 5 保存>
Subject: 
Date: Wed, 27 Sep 2006 22:38:56 +0800
MIME-Version: 1.0
Content-Type: text/html;
	charset="gb2312"
Content-Transfer-Encoding: quoted-printable
Content-Location: http://www.oxbad.com/DSP/maindoc/arithmetic_source/c/CFIR1.C
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; charset=3Dgb2312">
<META content=3D"MSHTML 6.00.2900.2963" name=3DGENERATOR></HEAD>
<BODY><PRE>/* cfir1.c - FIR filter implemented with circular delay-line =
buffer */

void wrap();

double cfir1(M, h, w, p, x)
double *h, *w, **p, x;
int M;
{                       =20
       int i;
       double y;

       *(*p)-- =3D x;
       wrap(M, w, p);                          /* \(p\) now points to =
\(s\sb{M}\) */

       for (y=3D0, h+=3DM, i=3DM; i&gt;=3D0; i--) {       /* \(h\) =
starts at \(h\sb{M}\) */
              y +=3D (*h--) * (*(*p)--);
              wrap(M, w, p);
              }

       return y;
}
</PRE></BODY></HTML>

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?