code n. 1.法典;法规。 2.规则,准则;(社会、阶级等的)惯例,习俗,制度。 3.(电)码,代码,密码,暗码;代号,略号,暗号。 4.【生物学】遗传(密)码。 the civil [criminal] code民[刑]法典。 the moral code道德准则。 code of signals 信号密码(本)。 code of the school 校规。 code and conventions 规章制度。 C- Napoléon 拿破仑法典。 C- of Hammurabi (古代巴比伦的)汉穆拉比法典。 code of honour 社会礼法;决斗惯例。 code of written law 成文法典。 the International Code 国际电码。 the Morse code 摩尔斯电码。 vt. 1.把…编成法典[法规]。 2.把…译成[编成]电码;编(码);译(码)。 n. -r 【自动化】编码装置;【电讯】记发器。
The implementation of the convolutional code is also discussed in this paper . finally , the flow chart of the algorithms of the system is described 最后,在介绍了差错控制编码的原理后讨论了如何实现卷积码的编解码算法。
To decrease error rate , we preprocess the hidden information by convolutional code and decode them by viterbi decoder . 2 在嵌入信息之前先将隐秘信息进行卷积编码,对从隐藏图像检测出的信息使用viterbi译码,以降低误码率。
The thesis mainly focuses on the encoding and decoding to the systemic convolutional code with programming language , which is prescribed in the intelsat iess 309 standard 本文主要针对intelsatiess309协议标准中所采用的系统卷积码,仿真并编程实现其编码和译码。
First , this paper analyses a bicm model and the bicm _ id model based on combination of convolutional code and 8psk modulation , and introduces the principle and key technique 本文分析了一个基于卷积码和8psk调制相结合的bicm模型和相应的bicm _ id模型,介绍了它们的原理和其中的关键技术。
Common telemetry coding and decoding methods , such as rs coding and decoding , convolutional coding and decoding , are introduced , applied in satellite data and realized by programming 论述了常用的遥测系统的编码与解码方式,并通过编程实现了对卫星数据的rs编码译码以及卷积码编码译码。
But for the same reason , it have n ' t the same diversity feature as space - time block code , as well as it have n ' t the same error correction capability as convolutional code or trellis code modulation 由于空时格码兼顾了分集和信道编码,导致其分集特性不如空时分组码,纠错能力不如卷积码和格形编码调制。
Concerning channel coding , it ’ s for tens of years from the first convolutional code to turbo code recommended by the consultative committee for space data systems ( ccsds ) 在信道编码方面,从最初的卷积码到现在ccsds ( consultativecommitteeforspacedatasystems )建议下的turbo码已经经历了几十年的时间。
Conventionally , dtv systems adopt coding schemes such as rs or convolutional codes , or concatenated codes , where the error correction performance is still quite far away from the shannon limit 通常的,数字电视系统采用的信道编码方案为rs码或卷积码,或二者的级联码,它的纠错性能与香农极限相比,仍有一定的距离。
We discuss the bit error rate of the convolutional code , turbo code encoder and decoder theory as well as the performance in awgn channel and rician channel , and present the result of simulation 讨论了rs与卷积码级联的误码率问题, turbo码的编译码原理及其在awgn信道和rician信道中的性能,并给出了相应的仿真结果。
Convolutional coding is a coding scheme often employed in deep space communications and recently in digital wireless communications . it offers an alternative to block codes for transmission over a noisy channel 卷积码被运用于卫星通信和无线通信系统中,它提供了一种不同于分组码的在噪声信道下传输信息的一种编码方案。