A Study on Quasi-orthogonal M-ary Chirp Modulation  

作　　者：YANG Liu ZHANG Fangqi ZHENG Guoxin SHA Jiajun 

机构地区：[1]Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200072,China [2]School of Electronic and Information, Shanghai Dianji University, Shanghai 201306, China [3]Maglev Transportation Engineering R&D Center, The Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, China

出　　处：《Chinese Journal of Electronics》2019年第5期1053-1058,共6页电子学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61871261,No.61801285);the National Key R&D Program of the 13th Five-year Plan,Research on Analysis of Operating Environment and Influencing Factors for High Speed Maglev Transportation System and Key Technologies for System Service Performance and Enviromental Reliability of High Speed Maglev Transportation System(No.2016YFB1200602-31)

摘　　要：This paper proposes and studies a novel Af-ary chirp modulation scheme adopting quasi-orthogonal waveforms. The Symbol error probability (SEP) of Af-ary modulation over Additive white Gaussian noise (AWGN) channel is derived based on coherent detection, which is a function of modulation factor and waveform period. Moreover, the SEP is investigated over a channel limited by a nominal bandwidth. Both theoretical analysis and simulations prove that the SEP performance of the proposed 8-ary chirp modulation outperforms that of conventional 8 Phase shift keying (8PSK) with the same bandwidth efficiency.This paper proposes and studies a novel M-ary chirp modulation scheme adopting quasi-orthogonal waveforms. The Symbol error probability(SEP) of M-ary modulation over Additive white Gaussian noise(AWGN)channel is derived based on coherent detection, which is a function of modulation factor and waveform period.Moreover, the SEP is investigated over a channel limited by a nominal bandwidth. Both theoretical analysis and simulations prove that the SEP performance of the proposed 8-ary chirp modulation outperforms that of conventional 8 Phase shift keying(8PSK) with the same bandwidth efficiency.

关 键 词：CHIRP modulation Correlation coeffi-cient Quasi-orthogonal WAVEFORM 

分 类 号：TN[电子电信]