判決反饋系統 的英文怎麼說
中文拼音 [pànjuéfǎnkuìxìtǒng]
判決反饋系統
英文
dfs decision feedback system- 判 : Ⅰ動詞1 (分開; 分辨) distinguish; discriminate 2 (評定) judge; decide 3 (判決) sentence; con...
- 決 : Ⅰ動詞1 (作出主張; 決定) decide; determine 2 (執行死刑; 殺死) execute a person 3 (裂開; 斷開...
- 反 : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
- 饋 : 動詞(饋贈) make a present of
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
-
Another advantage, contrast to using convolutional codes or turbo codes, is its low complexity while maintain high ber performance because the check equations are used to terminate the both iterations. we develop the theoretical error free feedback bound for bpcm - id and predict the threshold for decder convergence using the extrinsic information ransfer chart ( exit )
利用非正則ldpc具有不同度的信息節點概率密度演化的差異,對高階星座中具有較高級別的子通道提供額外的保護,可使迭代反饋判決時,星座子集擁有最大的無錯反饋歐氏距離調和均值,從而改善系統的迭代收斂特性。Firstly, a new joint filterbank precoders and decision feedback equalizers structure is proposed, and the corresponding optimization result based on the maximal mutual information criterion is derived. secondly, the concept of dt canonical model is proposed, which is very suitable for the task of blind signal processing based on the second - order statistical of the observations. thirdly, the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model, and a subspace blind identification algorithm of the time - invariant channel matrix is developed
本文創新性的成果在於:提出了預編碼-判決反饋聯合均衡系統結構,並從理論推導得出了對應的最大互信息量最優化設計結果;首次提出了時變色散通道的離散正則模型概念,該模型適宜於利用觀察數據的二階統計量進行盲信號處理;基於離散正則模型對時變色散通道進行了系統的盲均衡和盲辨識方法研究,提出了對時不變通道矩陣的子空間盲辨識演算法;針對誤差傳播效應問題,提出了可以消除誤差傳播效應的兩級盲辨識演算法;提出了基於離散正則模型的直接盲均衡演算法;提出了基於特徵恢復思想的神經網路直接自適應盲均衡演算法。It is based on the mean square error ( mse ) principle and we prove the validity of the method by computer simulations. to make a thorough understanding of mimo adaptive equalization system, in this thesis the author : 1 ) ananlyze the characteristics of mimo wideband channels and the modeling and simulation of 3gpp scm ; 2 ) research the capability of mimo linear adaptive equalization and mimo non - linear adaptive equalization by computer simulations ; 3 ) present a new method for selecting the order of adfe model 4 ) implement the adfe on adsp - 21160 for static image transmission, and already achieve satisfactory experimental result, which make a foundation for mimo adaptive equalization to be appllied in the real communication systems
為對mimo自適應均衡系統性能和設計做更深入的理解和研究,本文主要: 1 )研究了寬帶選擇衰落通道特性及3gppscm通道建模模擬; 2 ) mimo線性自適應均衡器和mimo非線性自適應均衡器系統的性能分析和模擬實現; 3 ) mimo系統下的判決反饋均衡器的階數選擇模擬試驗分析; 4 )把mimo自適應判決反饋均衡運用到了硬體模擬平臺上,採用了基於adsp - 21160的硬體dsp開發板,對靜止圖片的傳輸進行了試驗、分析和比較,得到了較滿意的實驗結果,使mimo自適應均衡在實際通信系統上的應用及實現奠定了現實基礎。Ofdm - channel - estimation. rar, 7kb, 下載 6 次, this file is about ofdm channel estimation based on comb pilot
下載29次,通道下的ofdm模擬系統,包括編碼,映射,交織,調制。通道估計採用判決反饋方法。分享友人