无线电通信技术
無線電通信技術
무선전통신기술
RADIO COMMUNICATIONS TECHNOLOGY
2012年
6期
35-37
,共3页
带内频率分集%瑞利信道%功率分散%空间分集
帶內頻率分集%瑞利信道%功率分散%空間分集
대내빈솔분집%서리신도%공솔분산%공간분집
in-band frequency diversity%Rayleigh channel%power dispersion%spatial diversity
针对带内频率分集技术应用的有效性以及其性能分析的重要性，在瑞利衰落信道下，以2PSK为例，从分析推导Ⅳ重空间分集最佳合并系统误码性能入手，结合带内频率分集技术的功率分散问题分析，给出了瑞利衰落信道下N重带内频率分集最佳合并系统的误码性能分析方法，并分析比较了不同带内频率分集重数的性能，得出带内频率分集技术的设计思想。
針對帶內頻率分集技術應用的有效性以及其性能分析的重要性，在瑞利衰落信道下，以2PSK為例，從分析推導Ⅳ重空間分集最佳閤併繫統誤碼性能入手，結閤帶內頻率分集技術的功率分散問題分析，給齣瞭瑞利衰落信道下N重帶內頻率分集最佳閤併繫統的誤碼性能分析方法，併分析比較瞭不同帶內頻率分集重數的性能，得齣帶內頻率分集技術的設計思想。
침대대내빈솔분집기술응용적유효성이급기성능분석적중요성，재서리쇠락신도하，이2PSK위례，종분석추도Ⅳ중공간분집최가합병계통오마성능입수，결합대내빈솔분집기술적공솔분산문제분석，급출료서리쇠락신도하N중대내빈솔분집최가합병계통적오마성능분석방법，병분석비교료불동대내빈솔분집중수적성능，득출대내빈솔분집기술적설계사상。
Considering the validity of technical application of in-band frequency diversity and the importance of its performance analysis, based on Rayleigh fading channel,taking 2PSK as an example ,this paper begins with analysis and derivation of BER (bit error rate) of optimal combined system with N-fold spatial diversity, and then, based on the analysis of power dispersion of in-band frequency diversity technique,a new analysis method has been proposed. This method can be used to analyze the BER performance of the optimal combined system with N-fold in-band frequency diversity under the circumstances of Rayleigh fading channel. Analysis and comparison have been carried out according to different N in N-fold in-band frequency diversity system and the schematic design principle has been figured out.
