multipath distortion 中文意思是什麼

multipath distortion 解釋
多徑失真
  • multipath : 多徑傳播
  • distortion : n. 1. 歪扭,扭曲。2. 【電學】(信號、波形等的)失真;【物理學】(透鏡成像產生的)畸變;【醫學】扭轉,變形。3. 竄改,歪曲,曲解。adj. -al
  1. And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion

    論文首先描述了數字電視地面廣播的需求條件,技術難點和目前存在的問題,並重點分析了dvb - t系統結構流程,核心技術及系統通道特性和參數,該系統採用了cofdm (編碼正交頻分多路復用) ,大量導頻信號插入和保護間隔技術等核心技術,使之能抵抗高電平( 0db ) ,長延時的靜態和動態多徑失真,有利於數字和模擬電視的混合傳輸,它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。
  2. The u. s. transmission format is called 8 - vsb ( for 8 - level vestigial sideband ), which is more susceptible to multipath distortion than the european system, called coded orthogonal frequency division multiplexing, or cofdm

    美國的傳送格式是八階殘邊帶( 8 - vsb ) ,這種格式比歐洲的編碼正交分頻多工( cofdm )系統,更容易受到多路徑問題影響。
  3. Distortion and gauss white noise distortion. the simulation of ideal system aims at absolutely clean channel, and the nonideal systems respectively set their channels as ricean channel ( multipath distortion channel ) and awgn ( gauss white noise distortion channel ). at the end of simulation, it use examining means of communication system as ber ( bit error rate ) analysis and eye diagrams analysis, then gives a summarize and a comment to the system

    模擬中的系統結構、模塊和傳輸速率的選擇符合標準的dvb1規范en300744 ,理想系統的模擬是針對完全乾凈的通道,而非理想系統分別將通道設置為hcean通道哆徑干擾通道)和awgn (高斯白噪聲通道) ,模擬最後用通信系統的檢測手段進行誤碼率分析和眼圖分析,並對該系統作了總結和評價,加深對了dvb1系統的信號處理過程的理解,明確了目前面臨的問題。
  4. When the high rate data is transmitted through bandlimited channels in mobile communications, the intersymbol interference ( isi ) caused by channel distortion and multipath propagation will bring decoding error. it needs to adopt appropriate techniques to remove or reduce this kind of interference

    當在帶限通道上傳輸高速數據時,會因為通道畸變和多徑效應產生的碼間干擾而產生誤碼,這就需要採用適當的技術來消除或減少這種干擾。
  5. In analog tv, such multipath distortion shows up as ghosts

    在類比電視中,這種多路徑失真的外在現象就是鬼影。
  6. Two major factors that limit the performance of ds - cdma systems are multipath channel distortion and multiple - access interference ( mai )

    對于ds - cdma移動通信系統,通道的失真與多址干擾是限制系統性能的主要因素。
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