This method gets rid of the interferential signal successfully but does not lose useful signal 該方法能有效地去除干擾信號(hào),又不會(huì)損失有用信號(hào)。
It is concluded that flp is better than other two filters in reducing the arw , constraining the high frequency noise and reserving the low frequency useful signals 對(duì)比的結(jié)果表明, flp濾波方法能有效地抑制高頻噪聲,并保留陀螺信號(hào)的有用的低頻量。
With the research development in antenna area , smart antenna , which could dynamically adjust antenna pattern in order to trace useful signals and suppress interference and noise , comes into researchers ’ sight 隨著天線領(lǐng)域研究的進(jìn)展,一種可以動(dòng)態(tài)調(diào)整天線方向圖,有效跟蹤有用信號(hào),抑制干擾和噪聲的天線系統(tǒng)? ?智能天線系統(tǒng),進(jìn)入了研究者的視野。
So how to select threshold effectively to avoid lose useful signal is problem worth to research . some research is processed here on the problems above as follow : ( 1 ) . in exordium the research purpose and means is introduced 因此,在去噪的過(guò)程中如何更有效地進(jìn)行閾值選取,使得噪聲被去除的同時(shí)盡可能的避免有用信號(hào)的丟失,也是一個(gè)值得研究的問(wèn)題。
Under the research of the characteristic of three classical analog filter with simulation software - matlab , this paper devised lowpass circuit that not only can keep the useful signal out of distortion but also benefits the following sample tache and filter tache 用matlab分析了三種經(jīng)典模擬濾波器的濾波性能,設(shè)計(jì)出了能保持有用信號(hào)不失真又有利于后面的采樣和數(shù)字濾波環(huán)節(jié)的低通電路。