基于功率复用的椭圆球面波函数非正交调制方法

doi:10.7527/S1000-6893.2019.23102

电子电气工程与控制

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基于功率复用的椭圆球面波函数非正交调制方法

陆发平^1,2, 王红星^1,2, 刘传辉^1,2, 陈昭男³, 康家方^1,2

1. 海军航空大学, 烟台 264001;
2. 山东省信号与信息处理重点实验室, 烟台 264001;
3. 中国人民解放军91550部队, 大连 116041

收稿日期:2019-04-18 修回日期:2019-05-20 出版日期:2019-09-15 发布日期:2019-06-06
通讯作者: 刘传辉 E-mail:lchgfy@163.com
基金资助:
国家自然科学基金（6170012154）；山东省"泰山学者"建设工程专项经费基金（ts20081130）

Power domain non-orthogonal pulse modulation based on prolate spheroidal wave function

LU Faping^1,2, WANG Hongxing^1,2, LIU Chuanhui^1,2, CHEN Zhaonan³, KANG Jiafang^1,2

1. Naval Aviation University, Yantai 264001, China;
2. Key Laboratory on Signal & Information Processing of Shandong Province, Yantai 264001, China;
3. 91550 Troop of the PLA, Dalian 116041, China

Received:2019-04-18 Revised:2019-05-20 Online:2019-09-15 Published:2019-06-06
Supported by:
National Natural Science Foundation of China (6170012154); Special Foundation Project of Taishan Scholar of Shandong Province (ts20081130)

摘要/Abstract

摘要： 围绕如何降低基于椭圆球面波函数的非正交调制（PSWF-NPSM）系统误码率，降低信号检测复杂度，引入调制信号功率复用思想，提出基于功率复用的椭圆球面波函数非正交调制（PD-PSWF-NPSM）方法。该方法对载波信号按子波带进行功率分配，增加了调制信号最小欧式距离，降低了系统误码率；在接收端，提出基于检测统计量的串行干扰相消信号检测方法，依据不同支路信号间功率差异，对信号进行分离、检测。理论与仿真分析表明，该方法在不降低系统频带利用率、调制信号功率谱、峰均功率比特性前提下，能够有效提高系统误码性能，降低调制信号检测复杂度；与原非正交调制方法相比，当误比特率（BER）为10^-5时，所提方法系统误码性能提升约1.7 dB。

关键词: 功率域, 功率分配, 椭圆球面波函数(PSWF), 非正交调制, 串行干扰相消(SIC)

Abstract: To reduce the system error rate and detection complexity of non-Nrthogonal Pulse Modulation based on Prolate Spheroidal Wave Function (PSWF-NPSM), we introduce the idea of modulation signal power multiplexing, and propose Power Domain non-orthogonal multicarrier modulation based on PSWF (PD-PSWF-NPSM). The proposed method distributes power of carrier signal according to its waveband, increase the minimum Euclidean distance of modulation signal and reduces system error rate. At the receiving end, we propose successive interference cancellation detection method based on detection statistics, which separates and detects PSWF signal according to the power difference between different branch signals. Theoretical and simulation results show that the proposed method can effectively improve the system error performance and reduce the complexity of modulation signal detection without reducing the spectral efficiency, modulation signal power spectrum and peak-to-average power ratio characteristics. Compared with PSWF-NPSM, when Bit Error Ratio (BER) is 10^-5, the system error performance of the proposed method is improved by about 1.7 dB.

Key words: power domain, power distribution, prolate spheroidal wave function (PSWF), non-orthogonal modulation, Successive Interference Cancellation (SIC)

中图分类号:

V19
TN911.7

陆发平, 王红星, 刘传辉, 陈昭男, 康家方. 基于功率复用的椭圆球面波函数非正交调制方法[J]. 航空学报, 2019, 40(9): 323102-323102.

LU Faping, WANG Hongxing, LIU Chuanhui, CHEN Zhaonan, KANG Jiafang. Power domain non-orthogonal pulse modulation based on prolate spheroidal wave function[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(9): 323102-323102.

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

基于功率复用的椭圆球面波函数非正交调制方法

Power domain non-orthogonal pulse modulation based on prolate spheroidal wave function

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