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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。
Radio frequency (RF) stealth performance of radar signal waveform is an important factor that radar system can adapt to modern battlefield environment. Radar RF stealth signal waveform design is an important issue in the design of modern radar system. First of all, based on the introduction of the principle of random noise signal radar, the stealth characteristics of the RF modulated CW radar signal waveform are described based on the Schleher factor. Then, the relationship between Gaussian noise autocorrelation function and Gaussian noise correlation coefficient of Gaussian noise phase and frequency modulation CW radar is analyzed, and the effects of different values of Gaussian noise root mean square (RMS) on Gaussian noise phase and frequency modulation Effect of Continuous Wave Radar Signal Waveform Radio Frequency Stealth Performance. Finally, a noise modulated symmetric triangular chirp continuous wave (STLFMCW) radar signal waveform is constructed. The simulation results show that the radar signal waveform has good RF stealth characteristics. By increasing the bandwidth of the Gaussian noise signal and adaptively controlling the Gaussian noise signal The power level can improve its RF stealth performance. Research shows that the noise-modulated CW radar signal waveform is a kind of radar signal waveform with good RF stealth characteristics.