抗多普勒频偏的多天线Chirp-BOK最佳随相检测方案

仇洪冰; 乔新宇; 郑霖; 杨超; 姚伟伟; 张静

doi:10.11959/j.issn.1000-436x.2018122

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抗多普勒频偏的多天线Chirp-BOK最佳随相检测方案

学术论文 | 更新时间：2024-06-05

- 抗多普勒频偏的多天线Chirp-BOK最佳随相检测方案
- Optimal detection of random phase signal with Doppler frequency offset in Chirp-BOK multi-antenna system
- 通信学报 2018年39卷第7期页码：123-131
- 作者机构：
  
  1. 桂林电子科技大学信息与通信学院，广西桂林 541004
  2. 桂林电子科技大学广西无线宽带通信与信号处理重点实验室，广西桂林 541004
  3. 通信网信息传输与分发技术重点实验室，河北石家庄 050081
- 作者简介：
  
  [ "仇洪冰（1963-），男，江苏如皋人，博士，桂林电子科技大学教授、博士生导师，主要研究方向为无线通信、超宽带通信、无线传感网络。" ]
  [ "乔新宇（1992-），男，满族，辽宁凌源人，桂林电子科技大学硕士生，主要研究方向为MIMO无线通信。" ]
  [ "郑霖（1973-），男，安徽祁门人，博士，桂林电子科技大学教授，主要研究方向为无线宽带通信和定位、自适应信号处理、无线传感网络。" ]
  [ "杨超（1988-），男，陕西西安人，桂林电子科技大学博士生，主要研究方向为无线通信、通信雷达一体化。" ]
  [ "姚伟伟（1992-），男，浙江德清人，桂林电子科技大学硕士生，主要研究方向为通信雷达一体化。" ]
  [ "张静（1981-），男，河北石家庄人，博士，通信网信息传输与分发技术重点实验室高级工程师，主要研究方向为卫星通信、软件无线电、认知无线电。" ]
- 基金信息：
  
  国家自然科学基金资助项目(61571143);国家自然科学基金资助项目(61371107);广西无线宽带通信与信号处理重点实验室基金资助项目(GXKL061501);通信网信息传输与分发技术重点实验室开放课题资助项目(KX172600033)
- DOI：10.11959/j.issn.1000-436x.2018122
  中图分类号： TN914.2
- 网络出版日期：2018-07，
  
  纸质出版日期：2018-07-25
- 稿件说明：
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仇洪冰, 乔新宇, 郑霖, 等. 抗多普勒频偏的多天线Chirp-BOK最佳随相检测方案[J]. 通信学报, 2018,39(7):123-131.

Hongbing QIU, Xinyu QIAO, Lin ZHENG, et al. Optimal detection of random phase signal with Doppler frequency offset in Chirp-BOK multi-antenna system[J]. Journal on communications, 2018, 39(7): 123-131.
仇洪冰, 乔新宇, 郑霖, 等. 抗多普勒频偏的多天线Chirp-BOK最佳随相检测方案[J]. 通信学报, 2018,39(7):123-131. DOI： 10.11959/j.issn.1000-436x.2018122.

Hongbing QIU, Xinyu QIAO, Lin ZHENG, et al. Optimal detection of random phase signal with Doppler frequency offset in Chirp-BOK multi-antenna system[J]. Journal on communications, 2018, 39(7): 123-131. DOI： 10.11959/j.issn.1000-436x.2018122.

摘要

当信道存在多普勒频偏和相位噪声时，采用相干检测的 MIMO-OFDM 系统需要复杂和精确的频偏估计与多普勒补偿。为此，提出了一种多天线Chirp-BOK最佳随相检测方案，在保证抗干扰和抗频偏衰落的条件下，通过空分复用提高了系统容量。经推导，多天线Chirp-BOK系统的等效MIMO信道系数矩阵为实矩阵，从而降低了信道估计的复杂度，同时，也避免了检测受随机相位的影响。最后通过NI USRP-2942R平台搭建了2×2无线收发 MIMO-Chirp-BOK 验证系统。实测和仿真验证了所提系统具有低复杂度，对相偏、频偏不敏感的优点，并通过收发双天线获得了2倍的通信容量。

Abstract

When there are Doppler frequency deviation and phase noise in channel

the MIMO-OFDM system with coherent detection requires complicated and accurate frequency offset estimation and Doppler compensation.Based on this

an optimal random phase detection was proposed in multi-antenna Chirp-BOK system

which improved the system capacity by space division multiplexing in the condition of anti-interference and anti-frequency deviation.The equivalent MIMO channel coefficient matrix of multi-antenna Chirp-BOK system was derived as a real matrix

so as to reduce the complexity of channel estimation and avoid to be affected by random phase.A two plus two wireless transceiver system was built on the NI USRP-2942R platform.Simulation and experiment results show that the MIMO-Chirp-BOK system inherits the advantages of low complexity

insensitivity to phase shift and frequency offset of Chirp-BOK communication system.It achieves multiplied communication capacity by increasing the number of antennas.

关键词

Keywords

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