数字信号处理

Then the digital signal is processed in digital field. At last DPTV converts the digital signal into analog signal and display.

数字处理电视是在模拟广播电视传输体制下，将接收到的模拟电视信号转换成数字信号，经过数字处理后再转换为模拟信号并显示输出。

Especially, the technology of Automatic Gain Control and signal processing are studied which are key factors working on the performance of the receiver. Based on analyzing the theory of automatic Gain Control, operational amplifiers 0P37 and logarithmic D/Aconverter AD7111A are used to design variable gain amplifiers which can be controlled numerally, A/D convector LTC1405 is Used to test the echo, Complex Programmable Logic device is used for controller, and an arithmetic is designed for automatic Gain Control which is simulated and analyzed in order to test its feasibility.

本文在分析自动增益控制AGC原理的基础上，采用集成运放OP37和数控增益衰减器AD7111A设计可数字控制的可变增益运放模块；采用高速A／D转换器LTC1405作为回波信号检测模块；采用复杂可编程逻辑器件CPLD作为核心控制模块，构成数字自动增益控制电路，并设计粗调和细调步进控制相结合的算法，对回波信号的增益进行精确而快速的调节控制，使回波信号振幅快速稳定在设计指标范围内，利于接收机后续信号处理电路对回波信号作进一步的处理。

Several high speed signal processing technologies of wideband digital receivers,including monbit IFM technology,polyphase channelized technology,channelized digital receiver based on FFT and RF bandpass sampling microwave digital receiver,are discussed in detail.

详细讨论了宽带数字接收机的几种高速信号处理技术，包括单比特瞬时测频技术、多相滤波信道化技术、基于FFT的信道化接收机和射频带通采样微波数字接收机，最后提出了在宽带中频数字接收机高速信号处理领域需要深入研究的有关技术。

Analogtodigital converter is very important in digital signal process board,so calculation of the effective numbers of bits is of great importance for evaluation of system performance.

将模拟信号转换为数字信号后再进行处理，是当前信号处理普遍使用的方法，模数转换器就是将模拟信号转换为数字信号的器件，所以计算其有效转换位数对系统性能评估就显得尤为重要。

The basic principle of quadrature system was given with the architraves of system and derivation of expressions.

勿s忱mview是一个用于数字信号处理和通信'系统设计的仿真软件，功能强大。

Furthermore, a kind of digital signal processing algorithm, reference deconvolution, was described.

同时介绍了一种数字信号处理算法——参考反转卷积算法在核磁共振波谱学中的应用。

This thesis mainly focused on the principle, design and application of the digital signal processing which was based on oversampling converter.

中文摘要：本文主要研究过抽样转换及其数字信号处理的原理，设计和应用。

Therefore, it is important to study DSP algorithms applied in modem instr...

因此研究更快、更有效的数字信号处理算法是现代仪器平台技术中十分重要和关键的问题。

Therefore, an advanced radar digital signal processing system will have multifunction; reprogrammable and reconfigurable ability.

先进的雷达数字信号处理系统应具备多功能、可编程、可重构等能力。

Modeled radar digital signal processing system has modeling; standard; open; reprogrammable and program-control characteristics.

模块化雷达数字信号处理具有模块化、标准化、开放性、可编程、可程控等特点。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。