trellis coded modulation造句
例句與造句
- trellis codes modulation schemes tcm
格碼調制 - trellis codes modulation schemes
格碼調制 - but for the same reason, it have n't the same diversity feature as space-time block code, as well as it have n't the same error correction capability as convolutional code or trellis code modulation
由于空時格碼兼顧了分集和信道編碼，導致其分集特性不如空時分組碼，糾錯能力不如卷積碼和格形編碼調制。 - in the third part, a new adaptive trellis coded modulation ( atcm ) solution was presented . we analysis the best coding scheme in different channel modes, different snr and different demodulation solution
仿真結果表明，在解調觀測長度相同的情況下，其性能和多碼元差分解調方式大致相同，但大大簡化了接收機結構。 - for its error correction performance extremely close to the shannon limit, from the beginning, turbo codes attracts the eyes of enormous professionals and researchers . in turn, it is called the greatest contribution after ungerboeck's trellis coded modulation ( tcm )
因為它具有極其逼近香農極限的糾錯性能，從一開始turbo碼便吸引了通信領域無數專家學者的關注與研究，進而被譽為繼ungerboeck提出格狀編碼調制(tcm)以來，信道編碼領域最偉大的貢獻。 - It's difficult to find trellis coded modulation in a sentence. 用trellis coded modulation造句挺難的
- since the fundamental idea of tcq originates from trellis coded modulation, in order to comprehend tcq, it firstly introduces tcm . also, because viterbi decoding algorithm is the key of coding gain of tcm and tcq, it particularly introduces convolutional coding and viterbi decoding algorithm
由于tcq的基本思想源于tcm，較好地掌握tcm的思想有助于深刻理解tcq，所以首先介紹了網格編碼調制；維特比算法是tcm和tcq提高編碼增益的關鍵，文中對tcm和tcq都要用到的卷積編碼和維特比譯碼也作了詳細的介紹。 - the technology of trellis coded modulation ( tcm ) and viterbi decoding which could achieve high transmitting rate at a low bit'error rate are demonstrated in detail . and then the design and achievement of itu-t v . 32 modem that based on one-dimensional tcm are expatiated . the paper also discusses the multi-dimensional tcm the itu-t v . 34 modem that based on it and tcm's application in the carrier communication
文中深入研究了可保證一定誤碼率的情況下能實現較高傳輸速率的網格編碼調制(tcm)技術和維特比譯碼技術，闡述了基于單維網格編碼調制的itu-tv.32modem的設計和實現，討論了多維網格編碼調制技術和基于其的itu-tv.34modem，并對網格編碼調制在載波通信中的應用作了簡單介紹。 - the paper discusses the part of asic design of tcm ( trellis coded modulation ) in hdtv 8vsb terrestrial channel broadcasting receiver chip . in testing, the tcm can improve the signal-to-noise by 3.3db compared with uncoded 4-vsb modulation, and with the 12 path intrasegment interleaving in tcm coding and viterbi decoding, system can control short burst noise error efficiently
在高清晰度電視信道接收芯片中內碼是8?vsb的格狀編碼，在系統(tǒng)性能上使用tcm編碼要比未編碼有3.3db的編碼增益，另外在格狀編碼中加入了12路的內交織，可有效的抑制短的突發(fā)噪聲對接收端viterbi解碼性能的影響。 - some critical coding and modulation techniques in uav communication have been discussed in this thesis, including differential phase keying ( dpsk ), modulation multiple symbol detection ( msd ), adaptive trellis coded modulation ( atcm ), and space-time coding . this work was supported by the national defense 973 project . uav communication has many sophisticated technologies
本論文在國防973項目“無人機信息傳輸理論與方法研究”的資助下，結合現代數字通信領域的新技術，根據無人機通信的特點和需求，對其中的幾項關鍵技術做了深入研究。