maximal ratio combining 中文意思是什麼
maximal ratio combining
解釋
最大比值合併-
Space - time codes can be divided into tree mainly parts : bell layered space - time architecture ( blast ), space - time trellis codes ( sttc ) and space - time block codes ( stbc ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )
Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。 -
In this dissertation, researches on performance of variable spreading gain cdma with imperfect power control and uplink capacity analysis of limited maximal ratio combining macrodiversity in spread spectrum radio networks are carried out. the main originality in this paper can be summarized as below. 1
本文主要內容涉及基礎研究和應用研究，其中包括： （ 1 ）進行了關于可變增益cdma （ vsg - cdma ）在非理想功率控制下的性能分析； （ 2 ）進行了關于宏分集無線網路cdma系統的功率控制和容量分析。 -
2. uplink capacity analysis of limited maximal ratio combining macrodiversity in spread spectrum radio networks in this chapter, a more practical case of limited maximal ratio combining macrodiversity ( mmrc ), mobile ' s signal only received by a limited number of nearest base stations, in a cdma system was studied
關于宏分集無線網路cdma系統的容量分析提出了一種更實際的分集受限的最大比率合成宏分集（ mmrc ） cdma模型，對移動臺的信號僅被最近有限個基站接收再合成的情形進行了研究。 -
Based on the obtained lower bounds on mean squared channel estimation errors, the limits on bit error rate ( ber ) for maximal ratio combining ( mrc ) with gaussian distributed weighting errors on independent and identically distributed ( i. i. d ) fading channels are presented
通過對不同衰落通道多普勒譜的積分，求出了相應的通道估計均方誤差下界的閉合表達式，並在此基礎上得到了分集系統在獨立同分佈的衰落通道中採用最大比合併時的誤碼率下界。
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