convolution code 中文意思是什麼

convolution code 解釋
採用了迴旋碼
  • convolution : n. 1. 迴旋，卷旋，盤旋;旋圈，卷褶；渦流。2. 【動，植】包卷，旋繞；【解剖學】回轉（部）；腦回；【數學】褶[卷]積；褶合式；【統計學】結合式。
  • code : n 1 法典；法規。2 規則，準則；（社會、階級等的）慣例，習俗，制度。3 （電）碼，代碼，密碼，暗碼；...
  1. Channel coding has two kinds : block code and convolution code

    通道編碼分為分組碼和卷積碼兩大類。
  2. Because of good performance, convolution code is applied more abroad in satellite communications and wireless communication

    卷積碼由於其良好的性能更是廣泛應用於衛星和無線通信之中。
  3. Turbo code, also named parallel concatenated convolution code, was presented by c. berrou, a. glavieux and p. thifimajshiwa in icc ' 93

    Turbo碼，又稱并行級聯卷積碼（ pccc ） ，是由c . berrou等在1993年icc會議上提出的。
  4. The tcq algorithm takes advantage of convolution code, and enlarges the euclidean distances among quantized data by expanding data dimensions

    Tcq演算法充分利用了卷積碼的特性，採用信號空間擴展的方法來增大量化信號的歐式距離，從而達到提高量化性能的目的。
  5. There are two decoding schemes for convolution code, such as sequence decoding algorithm and viterbi algorithm. because of simplicity 、 excellent performance, viterbi decoding algorithm is abroad applied

    卷積碼的譯碼演算法有序列譯碼和viterbi譯碼兩大類， viterbi譯碼演算法由於其簡單、性能優異等特性得以廣泛應用。
  6. To ensure the reliable transmission of voice and data, the channel encoding method which the digital trunking communication system uses is crc ( circle redundant code ) & rcpc ( rate - compatible punctured convolution code ) & interleave

    為了保障話音和數據的可靠傳輸，數字集群系統採用的通道編碼方案為crc + rcpc +交織。
  7. The viterbi decoding algorithm, proposed in 1967 by viterbi, and it ’ s proved that viterbi decoding algorithm is the maximum likelihood decoder algorithm of convolution code and it has excellent decode performance

    Viterbi譯碼演算法在1967年由viterbi提出，經證明它是卷積碼譯碼得最大似然譯碼演算法，具有優異的譯碼性能。
  8. Based on the ( 3, 1, 5 ) convolution code in digital trunking system, this paper first studied the decoding depth of the convolution code and fund out the right decoding depth for digital trunking system, then proposed a modified viterbi decoding algorithm

    本文以數字集群中所用的（ 3 ， 1 ， 5 ）卷積碼為基礎，首先對卷積碼的解碼深度進行了研究，得出適合數字集群系統的解碼深度，然後提出了一種卷積碼的viterbi譯碼的改進演算法。
  9. Is - 95, a wireless digital cellular standard based on cdma ( code division multiple access ), adopts convolution code as its channel coding part. the third generation wireless cellular standard adopts turbo coding, which stems from convolution coding, as its channel coding part

    以cdma （ codedivisionmultiplexaccess ）為基礎的數字蜂窩標準is - 95採用卷積碼作為其糾錯方案;第三代數字蜂窩無線通信標準也採用并行級聯卷積碼（ turbo碼）作為其糾錯方案。
  10. This paper analyses deterioration model of bar code signals after the point spread function convolution, and presents two kinds of recognition algorithm in correspondence to different bluring degrees of bar code signal : one based on midpoints detection and the other based on waveform analysis

    分析了條碼信號經過點擴展函數卷積后的降質模型。針對條碼信號模糊程度的不同，提出兩種識別方法：基於中點檢測的條碼識別方法和基於波形分析的條碼識別方法。
  11. First, the thesis introduced conception and characters of software radio ; second, the thesis analyzed architectures of software radio ; third, the thesis discussed critical technologies of software radio and applications of dsp in software radio, moreover, realized arithmetic of crc coding, convolution code, orthogonal digital frequency conversion and multi - speeds signal process ; finally, the thesis prospected foreground of software radio

    本文首先介紹了軟體無線電的概念和特徵，接著分析了軟體無線電體系結構，論述了軟體無線電的關鍵技術及dsp在軟體無線電中的應用，在tms320c54x上實現了crc編碼、卷積碼，完成了正交數字變頻和多速率信號處理的dsp演算法，最後展望了軟體無線電的應用前景。
  12. The basic principle of ofdm is converting high speed codes flowing in serial transmitting into low speed codes flowing in parallel transmitting, so the period of code is lengthened. it get over multi - channel delay using protective interval. if we deal with the received codes appropriately in receiver, the multi - channel can be matched with single channel, and the effect of channel to signal become multiplication from convolution, so ofdm can eliminate isi effectively

    Ofdm的基本原理是將高速串列碼流變為并行傳輸的低速碼流，增大了每個碼元的周期，在傳輸中又使用了保護間隔來對付多徑延遲，在接收端對接收序列進行適當處理后可以將多徑通道等效為單徑通道，並使通道對信號的影響由卷積關系變為乘積關系，從而可以有效地消除isi 。
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