你把昨天我发给你的那个程序中的衰减系数去掉,就会得到下面这个理想的演化图,这个图看起来很符合理论计算,但奇怪的是相位以及频谱图很不规则。你再问问你的老师吧,我也想知道自己错在哪里。</P><img src="data/attachment/forum/dvbbs/2005-3/200535124943379.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2005-3/200535124943379.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
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>你可以用FFT进行计算,非常简单,我有这方面的MATLAB程序,我可以发给你,你的油箱?我的QQ:532227665</P>
3# littleme
能不能发给我一个啊?谢谢!chenling870602@!63.com