数字编码

For example ,if you use a telephone that changes a person's voice into ones and zeroes ,as a digital phone does ,you still think that be voice you hear is "real", don't you ?

比方说，如果就像数字电话那样，你使用电话时，说话声，转换成1和0的编码，你仍然认为你听到的声音是&真&的是吗？

New techniques of encoding and distributing digital information are pacing the spread of the information age throughout society.

新技术的编码和分发数字信息起搏传播信息时代的整个社会。

A design and implementation method of the high speed modulation system, which adopted the new techniques of the FPGA and DAC based communication system,is presented in this paper. The effect of the key techniques of this system, such as the high speed digital signal processing for modulation, high speed based-band signal conversion, wide-band modulation, carrier suppression, high frequency and high precision system clock generation, is analyzed, and the solutions and performance analysis is also given. Finally, a high speed modulation system for space applications is implemented, can be used for high speed data transmission with QPSK, 8PSK, QAM or other kinds of digital modulation.

本论文依据正交调制原理，采用基于FPGA和DAC的设计技术，提出了一种高速、灵活的调制系统的设计方法，重点分析了系统组成的调制编码映射、基带脉冲信号转换、信号滤波、调制、系统时钟产生等关键技术环节的影响，解决了高速调制信号处理、高速数据转换、宽带调制、载波抑制、高频率高精度系统时钟的产生等关键技术问题，完成了一种适用于空间应用的高传输速率、多进制数字调制方式和调制体制灵活的数据传输调制系统的设计与实现，可在硬件设计不变的情况下，实现QPSK、8PSK和16QAM等多种调制方式的高速数据传输，QPSK调制速率达到500Mbps。

Reliable multicast solutions based on this technology include data carousels based on multiple transmissions, block encoding based on Reed-Solomon codes, and digital fountains based on fountain codes .

基于该技术的可靠组播解决方案主要包括：基于重复传输的数据轮播解决方案，基于RS码(reed-solomon codes)的分块编码解决方案，以及基于喷泉码的数字喷泉解决方案。

A method for variable length coding an ordered series of digital signals, e.g., of quantized transform coefficients of a block of image data with a most likely-to-occur amplitude, e.g., 0, and at least one other amplitude, e.g., 1, to form a set of codewords.

本发明提供了一种对数字信号例如具有最可能出现的幅度(例如0和至少一个其它幅度(例如1)的图像数据块的量化变换系数的有序系列进行可变长度编码以形成一组码字的方法。

Every character in storage is represented by a string of 0s and 1s-the only digitals found in the binary numbering system.

存储器中的每个字符都用0、1(二进制编码系统中仅有的数字)数串表示。

It has been proved that Lifting Scheme can realize all the first generation wavelet transforms. On the basis of research of Lifting wavelet technology and DSP technology, this paper empolders a sort of long-distance monitoring system.

本文是在对提升小波技术和DSP技术进行研究的基础上开发的一种远程监测系统，本系统是数字信号处理技术、图像压缩编码技术和网络通信技术相结合的产物。

Digital fountain is a packet oriented forward error correction technology for channels with erasures, which has obvious efficiency advantage in broadcast.

摘要数字喷泉是近年发展起来的一类基于删除信道、面向数据分组的前向纠错编码技术，在广播类传输中具有明显的效率优势。

A digital wire feeder system based on speed feedback of rotation speed with encoder of wire feed motor.

介绍了利用编码器实现送丝电机转速的数字反馈转速控制调速系统。

Making use of wire feed motor with encoder,a digital wire feeder system based on speed feedback of rotation speed with encoder of wire feed motor.

介绍了利用编码器实现送丝电机转速的数字反馈转速控制调速系统。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。