| 1. | This method gets rid of the interferential signal successfully but does not lose useful signal
该方法能有效地去除干扰信号，又不会损失有用信号。 |
| 2. | 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
对比的结果表明, flp滤波方法能有效地抑制高频噪声,并保留陀螺信号的有用的低频量。 |
| 3. | 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
随着天线领域研究的进展,一种可以动态调整天线方向图,有效跟踪有用信号,抑制干扰和噪声的天线系统? ?智能天线系统,进入了研究者的视野。 |
| 4. | 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，在去噪的过程中如何更有效地进行阈值选取，使得噪声被去除的同时尽可能的避免有用信号的丢失，也是一个值得研究的问题。 |
| 5. | 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分析了三种经典模拟滤波器的滤波性能，设计出了能保持有用信号不失真又有利于后面的采样和数字滤波环节的低通电路。 |
| 6. | Partial wavelet coefficients ca n ' t be set zero when the threshold is undersize so parts of noises are retained and some useful signals will be taked off when the threshold is iusto major so parts of useful signals are lost . these cases result in dissatisfactory denoising
如果阈值选取过小，那么有一部分的噪声小波系数将不能被置零，从而在去噪后的信号中保留了部分噪声信息，使去噪的效果变差。 |
| 7. | Based on the theory of dsss , the received signal can be despreaded and demodulated only when the phase of spread sequence in the receiver is equal to the phase of the received signal , or the useful signal would be overwhelmed by the noise
根据直接序列扩频原理，只有当接收端的本地扩频序列与接收信号中扩频序列相位一致时，即扩频序列同步时，才能实现接收信号的解扩和解调，否则信号将淹没在噪声中。 |
| 8. | This show us a very useful signal in studying the systematic property in the early stage of the evolutive colliding system , that ' s , a non - zero flow component of those particles observed by experiment could be interpreted as a signal for partonic flow
因此在碰撞早期产生的重子数输运是高能重离子碰撞中的一个重要的物理量，它影响着初态部分子的平衡，粒子的产生，系统的热力学或化学平衡以及集体膨胀等过程。 |
| 9. | For implementing conveniently the detection , identification and extraction of useful signal from the collected signal , we make a brief analysis to the application of correlation function in digital signal processing based on its three basic principles
摘要为了比较方便地对测量所得到的信号实现有用信号的检测、识别和提取，根据相关函数的3条基本性质，对相关函数在数字信号处理当中的应用进行了一些简要的探讨。 |
| 10. | First please make sure the useful signal has very good snr before you input it to amplifiers chain , then you can calculate how much gain and nf you need to get the targeted signal amplitude and noise level , based on this you can choose the right components to design amplifiers chain
后才将其输入放大器链，接着计算获得目标信号振幅和噪声水平所需的增益与nf的大小，最后根据这些数据选择合适的器件设计放大器链路。 |
