far detector 中文意思是什麼
far detector
解釋
遠探測器-
Conventional detector ( single - user matched filter ) distinguishes each user by the crosscorrelation of their spread - spectrum codes. in practice, however, its performance is much deteriorated due to the existence of noise in channel and strong multi - access interference, i. e. near for effect. a new method using independent component analysis is proposed in this paper. the - received energy of signals is controlled effectively, thus the near - far effect is overcome as much as possible ; moreover, the effect that noise imposed on the detector is mostly reduced. simulations verify the effectiveness of this method
傳統檢測器（單用戶匹配濾波）利用擴頻碼之間的互相關特性來區分各用戶信號.而在實際應用中，通道噪聲和近距離用戶對遠距離用戶的強多址干擾即遠近效應，使得接收機的性能受到很大影響.本文將獨立分量分析法引入傳統接收機，有效控制接收信號的能量，從而極大地提高了接收機的抗遠近性能，同時噪聲的影響被盡可能消除.模擬結果表明了該方法的有效性和可行性 -
The optimum multiuser detector proposed by verdu can solve the problem of mai and near - far effect of cdma communication system
由verdu提出的最優多用戶檢測器（ omd ）能夠解決cdma系統多址干擾及遠近效應。 -
Many methods of pitch detection are developed so far, in this thesis the pitch detector using waveform transform is adopted. according to the problem appearing in pitch extraction experiment, a novel algorithm of pitch detection is presented. the pitch points in speech signal exhibit local maximum across several consecutive dyadic scales, and their positions are similar, so the improved approach selects pitch points by vote strategy, not by traditional method
基頻提取的方法很多，本文採用了小波變換方法，該方法對部分語音得到了較好的結果，但對大部分語音提取的基頻中含有較多錯誤，經仔細分析和研究，本文對它進行了改進，提出了一種基於小波變換的語音基頻檢測新演算法。 -
Multiuser detector ( mud ) makes full use of the information of all the users that cause multiple access interference ( mai ) to detect the desired user. therefore, as compared with the conventional detector, it has better resistance capability to the mai and the so - called near - far problem. since the multi - user detector reduces the precision requirement of the power control, it can provide higher efficiency for frequency use, and thus improves the capacity of the communication system
多用戶檢測技術在傳統檢測技術的基礎上，充分利用造成mai干擾的所有用戶信號信息對單個用戶的信號進行檢測，從而具有優良的抗干擾性能，解決了遠近效應問題，降低了系統對功率控制精度的要求，因而可以更加有效的利用頻譜資源，顯著提高系統容量。 -
For the far deep space object, the scattered wave must transmit through the turbulence atmosphere and received by detector. as a result, the wave is inevitably affected by the turbulence
在主動干涉條紋成像方法中，發射的光束要經過大氣湍流才能到達目標，在目標上形成不同頻率的干涉條紋。 -
The best kind of detector for cosmic radiation is a tissue equivalent proportional counter tepc, but these are far too large and heavy to wear on the person
量度宇宙輻射的儀器中，以組織等效比例計數器tissue equivalent proportional counter最為有效，但由於體積過大和過重，並不適合配戴在身上。 -
Multi - user detector ( mud ) is one of the key techniques for these problems in cdma systems, which deals with multiple access interference as useful information and eliminates it by utilizing correlation characteristics between signature waves. mud techniques can dramatically relax " near - far " effects, significantly improve the system ' s performance and increase the capacity of cdma systems
它將信號中的多址干擾看作一種有用信息，利用擴頻序列之間的互相關性來消除多址干擾，能減輕「遠-近」效應影響，改善系統的性能，提高系統的容量。 -
Digital detector systems currently cost several hundred thousand dollars, far more than film systems
目前，數位偵測系統索價數十萬美元，遠比傳統的底片成像系統昂貴。
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