基于级联随机共振的窄带信号宽带化接收

侯成郭; 罗柏文; 李地

doi:10.11959/j.issn.1000-436x.2015183

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基于级联随机共振的窄带信号宽带化接收

学术论文 | 更新时间：2024-06-05

- 基于级联随机共振的窄带信号宽带化接收
- Broadband receiver of narrowband signal based on the cascaded stochastic resonance
- 通信学报 2015年36卷第7期页码：138-143
- 作者机构：
  
  1. 解放军信息工程大学信息系统工程学院，河南郑州 450002
  2. 解放军69260部队，新疆乌鲁木齐，830017
- 作者简介：
  
  [ "侯成郭（1981-），男，山西陵川人，解放军信息工程大学博士生，主要研究方向为通信信号处理、通信物理层技术。" ]
  [ "罗柏文（1980-），男，福建福州人，解放军信息工程大学博士生，主要研究方向为天线组阵技术、通信信号处理。" ]
  [ "李地（1969-），男，陕西西安人，博士，解放军 69260 部队总工程师，主要研究方向为通信信号处理。" ]
- 基金信息：
  
  国家自然科学基金资助项目(60472064);国家自然科学基金资助项目(61201380)
- DOI：10.11959/j.issn.1000-436x.2015183
  中图分类号： TN918
- 网络首发：2015-07，
  
  纸质出版：2015-07-25
- 稿件说明：
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侯成郭, 罗柏文, 李地. 基于级联随机共振的窄带信号宽带化接收[J]. 通信学报, 2015,36(7):138-143.

Cheng-guo HOU, Bo-wen LUO, Di LI. Broadband receiver of narrowband signal based on the cascaded stochastic resonance[J]. Journal on Communications, 2015, 36(7): 138-143.
侯成郭, 罗柏文, 李地. 基于级联随机共振的窄带信号宽带化接收[J]. 通信学报, 2015,36(7):138-143. DOI： 10.11959/j.issn.1000-436x.2015183.

Cheng-guo HOU, Bo-wen LUO, Di LI. Broadband receiver of narrowband signal based on the cascaded stochastic resonance[J]. Journal on Communications, 2015, 36(7): 138-143. DOI： 10.11959/j.issn.1000-436x.2015183.

摘要

为提高传统窄带接收机的解调增益，提出了基于级联随机共振的窄带信号宽带化接收方法。该方法一方面对接收信号进行随机共振运算，将信号中的噪声转化为信号能量；另一方面通过级联方式将接收信号转化为方波信号，并利用其先验信息构造本地序列进行宽带化相关运算，最终提高了信号处理增益。理论分析与仿真结果表明，该方法相比于传统的处理方式，其信噪比增益提高大于3 dB，并且对于接收信噪比为−7～1 dB的QPSK信号，其增益提高约为20 dB。

Abstract

To improve the demodulation gain of traditional narrowband receiver

a narrowband signal receiving method of broadband based on cascaded stochastic resonance is proposed.On one hand

the noise in the signal is converted to the signal energy by the stochastic resonance operation on the received signal.On the other hand

by cascading stochastic resonance systems

the received signal is changed into square wave signal; and by constructing related sequences with prior information of received signal

the demodulation output has high gain.Theoretical analysis and simulation results show that compared with the traditional approach

this method improves detection performance in terms of SNR by more than 3 dB.And for receiving SNR of QPSK in −7～1 dB

the gain increased is about 20 dB.

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references

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