数字信号

ARM embedded system and DSP are widely used in everywhere nowadays, for example: PDA, digital top box, digital camera, and digital TV.

ARM嵌入式系统和数字信号处理器已无处不在，手机、掌上电脑、数字机顶盒、数码相机、数字电视等产品应用前景越来越广泛。

Digital filter is a digital channel processing, one of the most important component of almost appear in all of the digital signal processing systems.

数字滤波器是数字信处理中最重要的组成部分之一，几乎出现在所有的数字信号处理系统中。

The mostly important task of this paper is researching the basic theories of digital filter, base on the TMS320VC5402 of TI company design filter system with high stability and low power consume.

本论文主要研究了数字滤波器的基本理论，基于TI公司的数字信号处理器TMS320VC5402设计了一款稳定度高，低功耗的数字滤波器系统。

The mostly important task of this paper is researching the basictheories of digital filter, base on the TMS320VC5402 of TI companydesign filter system with high stability and low power consume.

本论文主要研究了数字滤波器的基本理论，基于TI公司的数字信号处理器TMS320VC5402设计了一款稳定度高，低功耗的数字滤波器系统。

In the second part, we studied blind source separation in ill conditioned cases, obtained the sufficient and necessary conditions on solvability, and presented the neural network model and corresponding adaptive algorithm. We also discussed the blind digital source separation, established the blind separation and extration models and algorithms. These algorithms can be used to deal with high noise and ill-conditioned cases.

在第二部分，我们研究了奇异混合情形下信号盲分离问题，给出了神经网络模型及相应的自适应算法；我们也研究了数字信号盲分离问题，得到了有关可解性的充要条件，提出了分别处理低噪声问题和高噪声问题的算法，这些算法对感知信号个数少于源信号个数等病态问题也适用。

One of the ways to solve the problem above is actualizing the digital corresponding, transforming the image to the digital signals, wiping off the redundancy outlying of the image quality. Furthermore, on the precondition of ensuring the quality, storaging, recording and transmitting the digital signals is oecumenical, credible and all wool and a yard wide using least bits or bits ratio.

解决这个问题的途径之一，是实现图像通信的数字化，把图像信息转换成数字信号，去除与图像质量无关的冗余信息，并且在保证质量的前提下，用最少量的数码或数码率，实现各类图像的数字存储、数字记录或数字传输，达到优质、可靠、经济的要求。

The main features of the system are: the communications line is not only used for data transmission but also responsible for the system control and management; only one analogue to digital converter is needed for the whole system; a digital trimmer which is analogous to the adjustable resister in function is installed to each sub—system.

本文所进行的数字型条干均匀度测试仪的系统设计，采用了多微处理器的分布式并行结构，提出了一种数字信号的总线结构，采取了数据预处理和数字微调等措施，其主要特点为：半双工异步通信线不但用于数据传输，而且还负责系统的控制和管理；整个系统只需一路模数转换器；各子系统均设有数字微调装置，其功能类似于模拟电路中的电位器，可独立进行参数调整。

By thorough analysis and synthetize this paper made a frame of the System of Intelligent Instrument and its hardware structure. As followed, this paper depicted design details of Intelligent Instrument "s hardware, it included the design of interface circuit, data commutations and digital logic of DSP, MCU, Internet"s chip and ISPs apparatus etc., and have designed schematic map and circuit. So it accomplished the full design of hardware/software of the New Type Intelligent Instrument.

本文具体给出了新型智能仪器硬件结构及实现，描述了智能仪器硬件设计细节，包括数字信号处理器、单片机、Internet接入芯片、可编程数字/模拟器件等在新型智能仪器中的接口电路设计、数据通信设计和数字逻辑设计等，详细地给出了设计原理图和电路图；给出了新型智能仪器的软件设计细节，从而完成了新型智能仪器完整的软硬件设计。

The existing problems of digital signal calibration device are analyzed and a novel one based on reconfiguration technique is presented.

分析了现有数字信号校准装置存在的问题，提出了一种基于可重构技术的多功能数字信号校准装置的设计方法。

Because of the development of the digital signal-processing chip, digital realization of modulations needs to be researched.

由于数字信号处理芯片与专用数字芯片的发展，需要对各种信号的调制的数字化实现进行研究。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了