譯碼時延 的英文怎麼說
中文拼音 [yìmǎshíyán]
譯碼時延
英文
decoding delay-
In this paper, the common used encoding algorithms and basic finite - field opera - tions algorithms are introduced, and the decoding algorithms such as inverse - free ber - lekamp - massey ( ibm ) algorithm, reformulated inverse - free berlekamp - massey ( ribm ) algorithm and modified euclidean algorithm are analyzed in great detail. based on the ribm algorithm, a modified structure and a pipelined decoder scheme are presented. a tradeoff has been made between the hardware complexities and decoding latency, thus this scheme gains significant improvement in hardware complexity and maximum fre - quency
本文簡要介紹了有限域基本運算的演算法和常用的rs編碼演算法，詳細分析了改進后的euclid演算法和改進后的bm演算法，針對改進后的bm演算法提出了一種流水線結構的譯碼器實現方案並改進了該演算法的實現結構，在譯碼器復雜度和譯碼延時上作了折衷，降低了譯碼器的復雜度並提高了譯碼器的最高工作頻率。One of the key technologies of deep space communication is channel code. there are differences between deep space communication and the common space communication. because the former one has some characteristics, such as extending information transmission, and seriously reducing signal energy, it is necessary to ensure the information transmission band and the exactness by using the special means
通道編譯碼是深空通信中的關鍵技術之一，深空通信與一般的空間通信不同，深空通信具有信息傳輸時延大、信號能量衰減嚴重等特點，必須有特殊的手段保證其信息傳輸的帶寬和準確。Two sova decoding algorithms in ofdm system based on bpsk modulation with fading channel were presented. one is called bce _ sova, which is based on adaptive blind channel recognization. it can adaptively estimate the channel state information ( csi )
其中一種是基於自適應盲通道識別演算法的sova譯碼演算法（簡稱bce _ sova ） ，該演算法可以自適應地估計通道狀態信息（ channelstateinformation ， csi ） ，由於不用訓練，傳輸時延小，但計算復雜度高。Causes small transmission delay, but computation is complex. the other is called dsova, which does not need to know csi, with low - computation complexity and small transmission delay, and is more suitable in the case when side information is unknown. these two algorithms effectively combine the ofdm technology and the sova algorithm in rayleigh channel, resulting in an efficient sova decoding under frequency - selective channel
另一種是不含通道估計的差分sova演算法（簡稱dsova ） ，該演算法不必知道csi ，計算復雜度低，傳輸時延小，適用於邊沿信息（ sideinformation ， si ）未知的情況，這兩種演算法將ofdm技術和rayleigh通道下的sova譯碼演算法有機的結合起來，很好地實現了頻率選擇通道下的sova譯碼。The parameters include iterative decoding algorithms, interleave length, the times of iterative decoding and channel models. to reduce the decoding delay and the average iterative times, a few stop - iterative - criterias used as a rule are compared and analyzed, and an improved turbo - crc - sdr stop - criteria is brought forward
為了減少迭代譯碼時延及降低平均迭代次數，對常見的幾種迭代停止準則進行了分析比較，從中提出了一種改進的turbo - crc - sdr停止準則。The open reading frame consists of a series of tri - nucleotide codons which are translated into specific amino acids in the lengthening polypeptide
由一系列三核苷酸密碼子組成，多肽延伸時翻譯成特定氨基酸。We choose the max _ log _ map decoding algorithm and use the technology of altera and its cyclone2 devices as the fpga design scheme according to all the factors. taking advantage of the technology of fpga, the means, called “ top - down ” and “ down - top ”, is applied in the design of fpga in this paper
在綜合考慮設計方案的綜合性能、復雜程度、系統規模、系統延時和成本等各項因素后，本次設計選擇了altera公司的cyclone2器件來完成turbo碼譯碼演算法（ max _ log _ map ）在硬體語言上的模擬設計。分享友人