一种基于Bernoulli混沌的四相编码OFDM雷达信号设计方法

霍凯; 赵晶晶

doi:10.12000/JR16050

一种基于Bernoulli混沌的四相编码OFDM雷达信号设计方法

doi: 10.12000/JR16050

霍凯^,,
赵晶晶

(国防科学技术大学电子科学与工程学院长沙 410073)

基金项目:

自然科学基金青年科学基金(61501481)，中国航天科技集团公司航天科技创新基金

详细信息

作者简介:
霍凯(1983-),男,湖北黄冈人,博士,毕业于国防科学技术大学,现任国防科学技术大学电子科学与工程学院讲师,主要研究方向为雷达波形设计、雷达信号处理。E-mail:huokai2001@163.com;赵晶晶(1990-),女,籍贯江苏省扬州市,现为国防科学技术大学电子科学与工程学院在读博士研究生,主要研究方向为雷达波形设计。E-mail:xiaosatianyu@163.com

通讯作者:
霍凯huokai2001@163.com

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出版历程
- 收稿日期: 2016-03-02
- 修回日期: 2016-07-03
- 网络出版日期: 2016-08-28

A Design Method of Four-phase-coded OFDM Radar Signal Based on Bernoulli Chaos

Huo Kai^,,
Zhao Jingjing

(College of Electronic Science and Engineering, NUDT, Changsha 410073, China)

Funds:

This Research is Funded in Part by the Natural Science Foundation of China (61501481), The Foundation of China Aerospace Science and Technology Corporation

摘要

摘要: 相位编码正交频分复用(OFDM)雷达具有许多优良的性能，近年来受到雷达界的广泛关注。但在实际应用中，相位编码OFDM雷达信号存在优良编码数量不多、长度受限、峰均比过高等问题。该文针对这些问题，提出了一种基于Bernoulli混沌的四相编码OFDM雷达信号设计方法，可以构建任意数量和长度的编码，具有更大的设计自由度，并且通过初相加权，得到包络峰均比小于2的混沌四相编码OFDM信号，该信号在高分辨、多普勒等方面具有较多优良特性。
- 正交频分复用雷达 /
- 相位编码 /
- 混沌 /
- 包络峰均比 /
- 模糊函数
Abstract: Orthogonal Frequency-Division Multiplexing (OFDM) radar is receiving increasing attention in the radar field in recent years and is showing excellent performance. However, for practical applications, there are several problems with phase-coded OFDM radar, such as the existence of few good codes, limited length capability, and a high Peak-to-Mean-Envelope Power Ratio (PMEPR). To address those problems, in this paper, we propose a design method for a four-phase-coded OFDM radar signal based on Bernoulli chaos, which can construct codes of arbitrary amounts and lengths and demonstrate more agility and flexibility. By adopting original phase weighting, this method can obtain a chaotic four-phase-coded OFDM signal with a PMEPR less than two. This signal has excellent performance with respect to high resolution and Doppler radar application.
- Orthogonal Frequency Division Multiplexing (OFDM) radar /
- Phase-coded /
- Chaos /
- Peak-to-Mean Envelope Power Ratio (PMEPR) /
- Ambiguity function

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参考文献(23)

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