噪声调制连续波雷达信号波形射频隐身特性

doi:CNKI:11-1929/V.20110212.0957.001

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噪声调制连续波雷达信号波形射频隐身特性

杨红兵^1,2, 周建江¹, 汪飞¹, 刘伟强¹

1. 南京航空航天大学信息科学与技术学院,江苏南京 210016;
2. 南京农业大学工学院,江苏南京 210031

收稿日期:2010-08-30 修回日期:2010-11-08 出版日期:2011-06-25 发布日期:2011-06-24
通讯作者: Tel.: 025-84892430 E-mail: zjjee@nuaa.edu.cn E-mail:zjjee@nuaa.edu.cn
作者简介:杨红兵(1979- ) 男,博士研究生,讲师。主要研究方向:射频隐身,雷达信号波形设计。 Tel: 025-84307780 E-mail: hbyang@njau.edu.cn周建江(1962- ) 男,博士,教授,博士生导师。主要研究方向:射频隐身,雷达目标特性。 Tel: 025-84892430 E-mail:zjjee@nuaa.edu.cn
基金资助:
国防预研基金 (N0901-041);江苏省研究生创新基金(CX09B-081Z)

RF Stealth Characteristic of Noise Modulated Continuous Wave Radar Signals

YANG Hongbing^1,2, ZHOU Jianjiang¹, WANG Fei¹, LIU Weiqiang¹

1. College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. College of Engineering, Nanjing Agricultural University, Nanjing 210031, China

Received:2010-08-30 Revised:2010-11-08 Online:2011-06-25 Published:2011-06-24

摘要/Abstract

摘要： 雷达信号波形的射频(RF)隐身性能是雷达系统能否适应现代战场环境的重要因素,雷达射频隐身信号波形设计是现代雷达系统设计中的重要课题。首先,在介绍随机噪声信号雷达原理的基础上,基于Schleher截获因子阐述了噪声调制连续波雷达信号波形的射频隐身特性。然后,分析了高斯噪声相位和频率调制连续波雷达输出自相关函数和高斯噪声相关系数之间的关系,通过仿真研究了高斯噪声均方根(RMS)的不同取值对高斯噪声相位和频率调制连续波雷达信号波形射频隐身性能的影响。最后,构建了一种噪声调制对称三角线性调频连续波(STLFMCW)雷达信号波形,仿真表明该雷达信号波形具有良好的射频隐身特性,并且通过增加高斯噪声信号的带宽和自适应控制高斯噪声信号的功率水平可提高其射频隐身性能。研究表明,噪声调制连续波雷达信号波形是一种具有良好射频隐身特性的雷达信号波形。

关键词: 雷达, 隐身技术, 相位调制, 频率调制, 带宽, 对称三角线性调频连续波

Abstract: To a radar system, the radio frequency (RF) stealth of radar signal waveform is one of the important factors in modern battlefield. RF stealth radar waveform design is an important issue in design of modern radar systems. First, the principle of random noise signal radar is introduced and its RF stealth of waveform is analyzed in theory based on the Schleher intercept factor. Second, the relationship is analyzed between the output autocorrelation function of the Gaussian noise phase and frequency modulated continuous wave radar and the correlation coefficient of Gaussian noise. The effect of different root mean square (RMS) of the Gaussian noise on the RF stealth of the Gaussian noise phase and frequency modulated continuous wave radar signal waveform is studied through simulation. Lastly, a Gaussian noise plus symmetrical triangular linear frequency modulation continuous wave (STLFMCW) radar signal waveform is constructed. The study shows that the RF stealth of the Gaussian noise plus STLFMCW radar signal waveform is good and its RF stealth performance can be improved by increasing the bandwidth and decreasing the power level of the Gaussian noise signal. The research shows that the noise modulated continuous wave radar signal waveform possesses good RF stealth characteristic.

Key words: radar, stealth technology, phase modulation, frequency modulation, bandwidth, symmetrical triangular linear frequency modulation continuous wave

中图分类号:

V218
TN958

杨红兵, 周建江, 汪飞, 刘伟强. 噪声调制连续波雷达信号波形射频隐身特性[J]. 航空学报, 2011, 32(6): 1102-1111.

YANG Hongbing, ZHOU Jianjiang, WANG Fei, LIU Weiqiang. RF Stealth Characteristic of Noise Modulated Continuous Wave Radar Signals[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(6): 1102-1111.

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E-mail：hkxb@buaa.edu.cn

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噪声调制连续波雷达信号波形射频隐身特性

RF Stealth Characteristic of Noise Modulated Continuous Wave Radar Signals

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