fading characteristic 中文意思是什麼

fading characteristic 解釋
衰減特性
  • fading : 淡變
  • characteristic : adj 有特性的；表示…特性的，…特有的。 Japan s characteristic art 日本特有的藝術。n 特性，特徵，性...
  1. Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath

    在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。
  2. Two simulation algorithms of realization channel characteristic are analyzed emphatically : shaping of slow fading with correlation and generation of frequency - selected multipath fading

    重點分析了實現通道特性模擬的兩種演算法：慢衰落的相關性整形和頻率選擇性多徑衰落。
  3. All of our products are made through thermo - curing printing ink, thus have the characteristic of picture vividness, no fading, air permeability and no pollution, which meet the requirement of the american commodity inspection

    本公司所有圖案印刷均採用國際最新熱固油墨，達到具有印刷圖案逼真、不掉色、透氣性好、無污染等特色，達到歐美商檢要求。
  4. The characteristic of the time - variety channel may be represented by rayleigh fading and doppler frequency shift

    這種通道的時變特性可用瑞利衰落和多普勒頻移來表徵。
  5. Contributions in this paper mainly sh ow four points : 1 the structure characteristic of the received ds - cdma signal is analyzed in the presence of multi - path slow fading effect case for wireless mobile communication. according to this characteristic, four data - selected schemes based on chip - matched filter are presented from the perspective of energy and structure of signal. and the impact of these schemes on multiple - access interference ( mai ) and inter - symbol interference ( isi ) is analyzed

    本文的主要貢獻在於四個方面： 1 、針對無線移動通信系統中廣泛存在多徑慢衰落效應的情況，分析了ds - cdma系統中接收信號本身的結構特徵，根據這個特徵，在匹配濾波的基礎上，從能量與信號結構的角度提出了四種不同的數據採用方案，並分析了不同數據方案對多址干擾與碼間干擾的影響。
  6. In this paper, the fundament, the system architecture and the application of orthogonal frequency division multiplexing ( ofdm ) were discussed, and the mathematic model of time - varying multi - path based on the discussion of mobile fading channel characteristic were analysed, and the channel model were discussed by computer simulation

    本文首先簡要介紹了正交頻分復用（ ofdm ）的基本原理、系統組成以及ofdm的實際應用。在分析移動通道衰落特性的基礎上，分析了多徑時變通道的數學模型；並用計算機模擬的方法對通道模型進行了討論。
  7. On account of the importance of channels, we also discuss the characteristic of time - varying and fast - fading mobile channels and introduce channel modeling and a method of high - speed simulation for fading channels by using table look - up technique. in addition, because these approaches are simulated on the basis of 3rd generation partnership project ( 3gpp )

    由於通道在研究時變衰落移動通信通道的估計與均衡中缺一不可，文中還討論了衰落通道的統計特性和動態特性，快速衰落時變通道的建模和一種使用查表法的快速通道模擬的演算法。
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