The channel capacity of awgn channel and rayleigh fading channel with binary input and continuous output are derived and the shannon capacity limits for different code rate are provided . 2 對二元輸入、連續(xù)輸出的awgn信道和rayleigh衰落信道的信道容量進行了推導,給出了不同碼率下的shannon容量限。
The parameters include generator polynomial of component codes , interleave length and the type of interleavers , iterative decoding algorithms and iteration number , code rates and channel models et al 這些參數(shù)主要包括分量碼、交織長度和交織器類型、迭代譯碼算法和譯碼迭代次數(shù)、編碼速率以及信道條件等。
Wide doppler range . varied code length , varied code rate , which have more difficulties . little acquisition time and high acquisition probability are required during the capturing process of spread spectrum signals 對高動態(tài)、高碼率、低信噪比、大多普勒及變化的碼長和碼率的擴頻信號的快捕是本文的難點。
The realization of high code rate property is also mentioned . in the end of this paper , the author lays the emphasis on the circuit realization of high - code - rate pcm transmitter with quasi two - point injection techniques 本文的最后部分,作者重點對準兩點注入式高碼速率發(fā)射機(主要是調(diào)頻源)的電路實現(xiàn)作了詳盡的分析。
On the basis of designing the serial structure of mq encoder , parallel structure of mq encoder is designed using pipelining technique and the coding rate is approximately 1bit / cycle 為了得到更高速率的mq編碼器,采用流水線結(jié)構(gòu)設(shè)計了并行的mq編碼器。仿真結(jié)果表明mq編碼器的編碼吞吐量明顯提高,達到了硬件規(guī)模和編碼效率的平衡。