前向纠错码 meaning in English
fec forward error correction code
forward error correcting code
Examples
- Quick algorithm for bch error - correcting decoding of h . 261 video coder recommendation
前向纠错码的快速算法 - It has put forward a kind of method of self - adaptation based on motion characteristic to correcting error code . finally , based on the rtp protocol , real - time transmission of video and audio data is realized with software , and a bandwidth control algorithm based on rtp is introduced . the research results of this paper can be used in the long - distance education , video conference , videophone , video real - time control , and various kinds of communication systems
接着讨论了纠错编码，采用rs编码作为前向纠错码，提出了一种基于运动特征的自适应误码掩盖方法，并采用rtp协议进行视音频数据的实时传输及带宽控制，本文的研究成果可以直接用于远程教育、视频会议、可视电话、视频监控等各种通信系统，具有较大的研究价值及广泛的实用价值。 - Our object is an intermediate frequency modem of a software defined radio transmitter - receiver of multi - service , multi - modulationmode and multi - processdatarate . first , related software defined radio theory is introduced ; later , channels of transmitter - receiver are designed with consideration of data format , modulation , fec , interwaving . and scrambling ; emphasis is placed on theory and implementation of an audio compression algorithm cvsd ( continuous variable slope delta modulation ) and a fec technique convolutional coding - decoding
本文首先介绍了相关的软件无线电理论；然后完成了包括数据格式，调制方式，纠错码方式，交织器和扰码器等部分的中频调制解调器通道设计；接着着重介绍了系统中使用的音频压缩算法cvsd (连续可变斜率增量调制)的原理和实现，以及作为前向纠错码的卷积码编码理论和编解码的高效实现。 - In this paper , bit - error rate performance analyses are presented for coded and un - coded frequency hopping m - ary frequency - shift keyed systems under the condition of additive white gaussian noise ( awgn ) and partial band noise jamming and multitone jamming . the use of error - correct codes provide a way to improve the performance of frequency hopping system , particularly the use of reed - solomon code in a fh system under the condition of partial band noise jamming can greatly improve the performance of system . so we provide the way of coding and decoding of rs code in c language . in the end , we offer the simulation of the performance of time diversity fh / 2fsk system over partial band jamming noise channels
第一章为绪论，叙述跳频通信的发展趋势，以及基本概念，第二章及第三章介绍提高抗部分频带干扰的前向纠错码reed - solomon码的原理和实现方法。第四章研究跳频通信系统在各种干扰条件下的性能。最后在第五章以fh mfsk系统为例，探讨在部分频带干扰下的系统性能，并进行计算机仿真，仿真结果表明采用分集技术和各种编码技术对于系统的性能改善具有明显的效果。