This paper focuses on the theory of turbo code and its application in deep space communication 本文主要讨论了turbo编译码的原理及其在深空通信中的应用。
Secondly , the paper introduces the awgn channel model and the implementation of this channel model , for the deep space communication channel is awgn channel 考虑到深空信道近似为awgn信道,所以本文的ra码和ara码的仿真是在awgn信道下完成的。
The concepts taught in class are discussed in the context of aerospace communication systems : aircraft communications , satellite communications , and deep space communications 课程讲授的观念是在太空通讯系统的范畴下进行讨论,其范围有:飞行器通讯、卫星通讯及外太空通讯。
Turbo code also has better capability in resisting attenuation and disturbance , so it has great potential applications in deep space communication with bad channel condition Turbo码还具有很强的抗衰弱、抗干扰能力,这使得turbo码在信道条件较差的深空通信中有很大的应用潜力。
Viterbi algorithm is a kind of maximum likelihood decoding method , which can obtain high decoding speed and cost fixed decoding time , so it is widely used in deep space communication 维特比译码算法是一种最大似然译码,它可以得到较高的译码速度以及译码计算时间固定,因而在深空通信中得到广泛应用。
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。
Reed - solomon code , a powerful error correcting code for burst and random errors , is widely applied to deep space communications , mobile communications , disk array , digital video broadcasting system , and so on Reed - solomon (简称rs码)是一种具有很强的纠正突发和随机错误的信道编码方式,在深空通信、移动通信、磁盘阵列以及数字视频广播( dvb )等系统中具有广泛的应用。
Reed - solomon code , a powerful error correcting code for burst and random errors , is widely applied to deep space communications , mobile communications , disk array , digital video broadcasting system ( dvb ) , and so on Reed - solomon码(简称rs码)是一种具有很强纠正突发和随机错误能力的信道编码方式,在深空通信、移动通信、磁盘阵列以及数字视频广播( dvb )等系统中具有广泛的应用。
Before implementing exploring outer space , some spacecrafts with different purpose should be launched to outer space . and because of this , effective contacts are required to be constructed between spacecraft and the earth , and among the spacecrafts , namely we should perform deep space communication 要开展空间探测,就要向太空发射带各种目的的空间探测器,这样就要求在探测器间、探测器与地球间构建起行之有效的联系,即要进行深空通信。