系统工程与电子技术
• 传感器与信号处理 • 上一篇 下一篇
张民, 刘海鹏, 蔡兆晖
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ZHANG Min, LIU Hai-peng, CAI Zhao-hui
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摘要:
高主副瓣比、窄主瓣宽度以及良好的正交特性是多输入多输出雷达波形设计的研究重点。利用组合窗法对非线性调频信号主副瓣比以及主瓣宽度进行了优化,分析了组合参数对信号的影响;在此基础上,提出了基于组合窗优化的正交频分非线性调频信号的设计方法,并对点目标正交频分回波信号进行了匹配滤波。仿真结果表明,优化后的雷达信号具有良好的正交性能。
Abstract:
High ratio of mainlobe peak to sidelobe peak (RMS), narrow mainlobe width and good orthogonality properties are the research priorities of multiple-input multiple-output radar waveform design and optimization. Based on the effect of combination parameters on the RMS and mainlobe width, the nonlinear frequency modulation (NLFM) chirps are optimized using combined windows. Furthermore, a novel signal design method named of orthogonal frequency division multiplexing NLFM (OFDM-NLFM) is proposed by means of combined windows. Finally, the point target echo of the designed signal is processed using the matched filter. The simulation results confirm the good orthogonal performance of the optimized radar signal.
张民, 刘海鹏, 蔡兆晖. 基于组合窗的OFDM-NLFM信号设计[J]. 系统工程与电子技术, doi: 10.3969/j.issn.1001-506X.2016.02.08.
ZHANG Min, LIU Hai-peng, CAI Zhao-hui. Design of OFDM-NLFM signal based on combined windows[J]. Systems Engineering and Electronics, doi: 10.3969/j.issn.1001-506X.2016.02.08.
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链接本文: https://www.sys-ele.com/CN/10.3969/j.issn.1001-506X.2016.02.08
https://www.sys-ele.com/CN/Y2016/V38/I2/287