基于特征值谐振的PSWFs正交脉冲检测方法

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英文篇名：PSWFs orthogonal pulse detection method based on eigenvalue resonance 作者：钟佩琳 ; 康家方 ; 苏伟 ; 王红星 英文作者：ZHONG Peilin;KANG Jiafang;SU Wei;WANG Hongxing;College of Basic Science for Aviation,Naval Aviation University;College of Aviation Combat Service,Naval Aviation University;Staff,Naval Aviation University; 关键词：正交脉冲 ; 检测 ; 谐振 ; 特征值 ; 椭圆球面波函数 英文关键词：orthogonal pulse;;detection;;resonance;;eigenvalue;;prolate spheroidal wave functions 中文刊名：HZLG 英文刊名：Journal of Huazhong University of Science and Technology(Natural Science Edition) 机构：海军航空大学航空基础学院;海军航空大学航空作战勤务学院;海军航空大学参谋部; 出版日期：2019-06-17 16:31 出版单位：华中科技大学学报(自然科学版) 年：2019 期：v.47;No.438 基金：山东省“泰山学者”建设工程专项经费资助项目(ts20081130) 语种：中文; 页：HZLG201906006 页数：5 CN：06 ISSN：42-1658/N 分类号：35-39

摘要

针对正交脉冲通信系统采用相关解调检测方法,存在对同步偏差敏感、需存储模板脉冲信号的问题,根据椭圆球面波函数(PSWFs)脉冲谐振机理,以微分定义式的特征值为检测参数,从多路叠加脉冲中筛选检测出对应特征脉冲上加载的信息,提出一种基于特征值谐振的PSWFs正交脉冲检测方法.仿真结果表明:对比基于波形相关的解调检测方法,提出的检测方法虽在理想同步条件下误码性能略差,但对同步精度要求很低,在非理想同步条件下展现出很低的解调误码率,且不再须要提前存储模板脉冲,解决了传统相关接收方法存在的问题;该检测方法的适用性并不局限于PSWFs脉冲,可推广用于其他类型的非正弦信号.
        Correlation receiver is used in orthogonal pulse communication system widely,however there exists some problems such as sensitive to synchronization offset and needing to store template pulses in advance. On the basis of studying the resonance mechanism of PSWFs(prolate spheroidal wave functions) pulses, an orthogonal pulse detection method of PSWFs was proposed based on eigenvalue resonance.This method used eigenvalue of differential definition as detection parameter,filers and detects the information loaded on corresponding eigenvector from received multiple pulses.Simulation results show that the proposed method requires low synchronization precision which can obtain better demodulation accuracy under the condition of non-ideal synchronization comparing with the demodulation method based on waveform correlation,although the bit error performance of the former is a little worse than the latter.The proposed method also doesn't need saving template pulses in advance.These abovementioned features can overcome the problems in correlation receiver.This method is not limited to PSWFs but also applied to all other non-sinusoidal signals.

引文

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