数字信号

The PID weight control system s structure of MK95 cigarette machine was introduced and the principle about the control system was analyzed, such as the check of weight symbol, PID parameter choice.

介绍了MK95卷烟机 PID重量控制系统的结构，对其控制原理进行了分析重量信号的检测、控制过程、削减盘电机速度控制、数字PID控制算法的实现、PID参数选择。

Principles and methods of dynamic compensation for the balance are researched in this thesis. In the meantime, digital filter for the output signal of the batch balance and its corresponding algorithm are discussed. Then, numerical simulation for the high-precise weighing method is performed.

详细探讨了配料秤的动态补偿的原理与方法，进而又讨论了对配料秤的输出信号进行数字滤波处理的必要性和实现算法，并对这些实现高精度称重的方法进行了的计算机仿真。

Transport stream decoding is SDTV and HDTV source decoding software. It can decode the transport stream files in hard disk into DTV signal then broadcast, fast forward, fast rewind or pause them on screen.

传输流软件解码是一套标清和高清信源解码软件，能将硬盘上的传输流文件解码为数字电视信号，并可以在屏幕上对其进行快进、快退、暂停、播放。

Design of Infinite Impulse Response Filters by Frequency Transformations This work is produced by The Connexions Project and licensed under theCreative Commons Attribution License The design of a digital filter is usually specified in terms of the characteristics of the signals to be passed through the filter.

设计无限脉冲响应滤波器的频率变换这项工作是由连接项目和授权下theCreative署名许可设计一个数字滤波器通常是具体规定的特点，信号可以通过过滤器。

The papers final aim is to design a DSO with powerful signal processing ability,which can compete with other foreign products in market.

本论文的最终目标是设计出一台具有强大信号处理功能和市场竞争力的便携式数字存储示波器。

Due to the salient structure of SRM, the flux linkage is a nonlinear function of both the rotor position and excitation current, which makes the measurement difficult.

该系统通过DSP 片内外设模块实时采集电机的电压电流信号，并将结果传送至上位机，利用数字离散方法计算磁链，建立磁链与电流、位置角度的对应关系。

The fore part of data acquisition is including:(1) adopting 1-wire digital thermometer DS181B20 to measure temperature;(2) adopting capacitive humidity sensor HSI101 to measure humidity.

数据采集部分包括(1)采用单总线接口的数字温度传感器DS18B20测量仓库温度；(2)采用HS1101电容式湿度传感器，通过其振荡测量电路，获得的频率信号与湿度值成近似线性关系，这样就可很容易的完成对仓库湿度的测量。

There are many types of geophones available, which can be divided into analog and digital geophones by their characters of output signals.

目前勘探市场应用的检波器种类繁多，就地震检波器输出信号的特征而言，可分为模拟地震检波器和数字检波器，而模拟检波器又可以分为多种类型。

Furthermore, an integrative anti- interference solutions are provided, which are consisted of both hardware ones and software ones. Solutions in hardware include a multi-layer shielding structure and proper groundings of the whole system. Solutions in software include digital data pretreatment based on wavelet, FIR digital filter and algorithm of improved high order sine fit method. They do resolve the corresponding problems in on-site monitoring caused by strong electromagnetic field, noise in signals and harmonic and the fluctuation of power system frequency.

同时建立了以屏蔽结构和接地措施为主体的硬件抗干扰和以小波变换预处理、FIR数字滤波器、改进的tg δ高阶正弦拟合算法为主体的软件抗干扰相结合的综合抗干扰措施，有效解决了现场强电磁场干扰、信号中噪声干扰、谐波干扰以及系统频率波动等问题。

Furthermore, an integrative anti- interference solutions are provided, which are consisted of both hardware ones and software ones. Solutions in hardware include a multi-layer shielding structure and proper groundings o f the whole system. Solutions in software include digital data pretreatment based on wavelet, FIR digital filter and algorithm of improved high order sine fit method. They do resolve the corresponding problems in on-site monitoring caused by strong electromagnetic field, noise in signals and harmonic and the fluctuation of power system frequency.

同时建立了以屏蔽结构和接地措施为主体的硬件抗干扰和以小波变换预处理、FIR数字滤波器、改进的tg δ高阶正弦拟合算法为主体的软件抗干扰相结合的综合抗干扰措施，有效解决了现场强电磁场干扰、信号中噪声干扰、谐波干扰以及系统频率波动等问题。

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。