研究具相關性統計環境中M-ary非同調調變方式的分支相關特性

Branch Correlation of M-ary Non-Coherent Modulation Schemes in Correlated Statistics Environments

本文旨在研究非同調（non-coherent）M-ary 頻率鍵移（frequency shift keying, FSK）調變系統的分支相關係數，其中相關環境假設係處於由相關Nakami-m 統計分布所定性的分支相關環境中。本文推導了一些包含parabolic cylinder 函數的新方程式，至於傳輸通道是考慮為非選頻性（frequency non-selective）的衰落通道。本研究中並透過數值分析的方法以確認新方程式中的分支相關效應。 In this study, branch correlation coefficient characterized by correlated Nakagami-m distribution is investigated for non-coherent M-ary FSK (frequency shift keying). Some new equations, including one for the parabolic cylinder function, are derived. The transmission channels for a wireless radio system are assumed to be frequency non-selective fading channels. Numerical analysis methods are applied to validate the effect of branch correlations with application of the new equations. The results confirm that the branch correlation parameter is not negligible when designing communication systems.