数字信号处理

However, it is a tradeoff project to develop digitized receivers because of the limitations of analog-to-digital converter , digital signal processing , etc.

但由于受到模数转换器和数字信号处理等技术发展水平的限制，研究数字接收机成了一种折衷的方案。

The error of output signal is caused by clock shaking in the analog-to-digital converter, which can affect the succeeding signal processing.

模数转换器的时钟抖动引起输出信号的误差，该误差会影响后继的数字信号处理。

From the most basic signal analysis, digital signal processing, and the Fourier transform convolution theorem was derived and that, and with MATLAB simulation.

本文从最基本的信号系统分析、数字信号处理过程开始，对傅里叶变换以及卷积定理进行了推导和证明，并且用MATLAB进行仿真。

We decomposed and reconstructed the tested signal by use of filter basing on wavelets transform. With maximality of the reconstructed signal's model, we can find the start point of the echo pulse and calculate the fault distance accurately.

作者采用目前已经广泛应用在数字信号处理领域的小波分析的方法，设计了基于小波变换的滤波器对所测试的信号进行分解和重构，利用重构信号模的极大性寻找反射脉冲的起始点从而实现对故障的定位。

Polyvinylidene fluoride is applied as sensor to monitoring the vibration of stayed cables ,and digital signal processor is applied to realize the FFT transform of signal ,the tension can be calculated.

聚偏二氟乙烯传感器通过监测应变得到拉索的振动信号，采用数字信号处理芯片实现振动信号的快速傅立叶变换，利用变换得到的振动频率计算出拉索的张力，实现斜拉索张力的在线测量。

By the method, the phase shift of signal was realized with programma. Together with variable gain larger and ilter processing, it made a positive feedback loop to compensate the variation energy loss of micro cantilever.

利用FPGA的可编程数字信号处理功能实现信号的移相，并与可变增益放大、滤波处理模块一起构成正反馈环路。

With the advanced DSP technology,we can real-timely acquire and process all kinds of physiology parameters,at the same time the acquired data will be transmitted to master-control room by wireless communication technology in order to be displayed and processed.

借助于先进的数字信号处理技术，可以实时的对人体的各种生理参数进行采集和处理，运用无线传输技术对采集的数据传送到中央主控系统进行显示和预报处理。

With the development and progress of computer science,micr-electronics science and signal pro- cessing,Analog/Digital converter has already become the key technology in the area of DSP.

随着计算机技术、微电子技术以及信号处理技术的发展和进步，模数转换技术已成为数字信号处理的关键技术。

The sunspot numbers is the major targets which describes the solar activity level,The solar activity influences human s health and human to rely for existence directly of environment-the Earth.

太阳黑子数是描述太阳活动水平的主要指标，太阳活动直接影响人类健康和人类赖以生存的环境—地球；依据数字信号处理原理，采用多种处理方法，分析处理了1770-1869年的太阳黑子数年均值；得出了太阳黑子存在11-12年周期的结论。

According to the current high real time peculiarity and high precision demands of beacon beam processing subsystem of space optical communication and the requirements of our project, the method that uses digital signal processor to solve the image position error signal extraction of beacon beam is proposed in this dissertation. It have the following advantages: the small system volume, the slight weight, the small power, the high real time peculiarity and the high precision and so on.

根据目前空间光通信对信标光处理子系统提出的高实时性和高精度性的要求以及课题的需要，本论文提出用数字信号处理芯片DSP来解决空间光通信中信标光的像面位置误差信号提取的问题，其优点就是系统体积小、重量轻、功耗低、实时性高、精度高等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。