数字信号

With the quick development of the microelectronices technologies, the operation ability of the general-purpose programable device doubles and redoubles, it's price,however decreases steadily, which make the software radio possible in technical reallization and economic cost.

摘 要：目前软件无线电技术已成为无线电通信领域，特别是军用无线电通信领域的技术热点随着微电子技术的迅速发展，数字信号处理器等通用可编程器件的运算能力在成倍提高，而价格却成倍下降，这样就使得软件电在技术实现以及经济成本等方面成为可能。

Because ADSL is superimposes the high frequency digital signal in the ordinary telephone line bottom frequency pronunciation, therefore any equipment will join from the Telephone company telco to ADSL filter this section of connections will harm the data the normal transmission, therefore before the filter will not want and the telephone, the telephone security hits and so on equipment

由于ADSL是在普通电话线的底频语音上叠加高频数字信号，所以从电话公司到ADSL滤波器这段连接中任何设备的加入都将危害到数据的正常传输，所以在滤波器之前不要并电话、电话防盗打器等设备。

In order to have the thermal image sight with the same functions of low level sight sight as the tank does,a realtime image processing system that superposes sight graduation image and thermal image, based on DSP high speed image processing function is offered to realize the goal.

为了实现热成像瞄准镜同样具有坦克微光瞄准镜所具有的功能，本文利用数字信号处理器DSP高速图像处理功能实时地将热成像图像和瞄准镜分划图像进行叠加处理，从而解决了上述问题。

This paper researches the detection and the solution of the figure signal in the telemetering system.

研究了遥测系统中数字信号的检波和解调，介绍了以PLC为核心的遥测网络系统的相关设计，讨论了该系统的硬件和软件的研制。

That's when the nation's broadcasters went from analog to digital signals.

因为当天美国的广播公司进行了模拟数字信号转换。

With the fast advance of digital signal processing and integrated circuit technology, Multi-carrier CDMA technology combined with CDMA technology and OFDM technology has become one of the most research hot points, more and more scholar are beginning to research it.

随着数字信号处理和集成电路技术的快速发展，由CDMA和OFDM结合的多载波CDMA技术已经成为通信的研究热点之一，已经受到越来越多学者的关注。

Based on the analysis of characteristics of smart antenna,detailed discussion is performed for the theoretical methods of smart antenna. According to different methods of antenna beam processing and forming,smart antenna's architecture and classification are introduced.

0引言智能天线的概念是90年代初由一些学者提出，在微波技术、自动控制理论、自适应天线技术、数字信号处理技术和软件无线电技术等多学科基础上综合发展而成的一门新技术。

Using SiGe technology and a fully differential archi- tecture, the device offers superior digital signal characteristics and very low clock skew error.

利用硅锗技术和全差分阿尔基-丁桃源，该器件提供卓越的数字信号的特点和非常低的时钟偏移误差。

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。

The increase of FFT computing speed is the main subject in the realm of digital signal processing. Parallel computing and pipeline structure are the basic technologies to achieve high speed of large scale FFT computing.

FFT速度的提高是数字信号处理领域中的核心问题，并行流水计算是实现大规模FFT高速计算的基本技术。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。