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| 一种基于最小二乘的高频雷达信号处理方法 | |
| 引用本文： | 位寅生,沈一鹰,刘永坦. 一种基于最小二乘的高频雷达信号处理方法[J]. 系统工程与电子技术, 2001, 23(1): 34-36 |
| 作者姓名： | 位寅生 沈一鹰 刘永坦 |
| 作者单位： | 哈尔滨工业大学电子工程技术研究所, |
| 基金项目： | 国防重点预研基金资助课题(46.2.1/A96600-46) |
| 摘 要： | 高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。为了获得足够的带宽，雷达采用一种非规则频率调制的波形。这种波形经过常规FFT处理后的旁瓣很高，严重影响了雷达的性能。为此，提出了一种基于最小二乘的信号处理方法，它具有处理方式简单，易于应用实现的优点，能够较好地抑制旁瓣，提高了雷达在恶劣电磁环境下的生存能力。 |
| 关 键 词： | 信号处理 旁瓣抑制 最小二乘方法 |
| 文章编号： | 1001-506X(2001)01-0034-03 |
| 修稿时间： | 2000-05-09 |
A Signal Processing Method for HF Radar Based on the Least Square Technique |
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| Wei Yinsheng Shen Yiying Liu Yongtan Research Institute of Electronic Engineering,Harbin Institute of Technology. A Signal Processing Method for HF Radar Based on the Least Square Technique[J]. System Engineering and Electronics, 2001, 23(1): 34-36 | |
| Authors: | Wei Yinsheng Shen Yiying Liu Yongtan Research Institute of Electronic Engineering Harbin Institute of Technology |
| Affiliation: | Wei Yinsheng Shen Yiying Liu Yongtan Research Institute of Electronic Engineering,Harbin Institute of Technology,150001 |
| Abstract: | Operating in the heavy congested SW band,it is difficult for HF radars to find continuously useable waveband for signal modulation.In order to obtain enough bandwidth,HF radars use an irregularly frequency modulated waveform.Using the conventional method of FFT to process such waveform would result in very high sidelobes and thus greatly debases the radar's performance.To solve this problem,a new signal processing method based on the least square technique is proposed which is easy for processing and application.Result shows that the method can successfully suppress the sidelobes and improve the radar's viability and resolution in heavy electromagnetic environment. |
| Keywords: | Signal processing Sidelobes suppression Least square method |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |