天波超视距雷达工作频率点的自适应选择
Adaptive Operating Frequency Selection for SKW-OTHR
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摘要: 该文提出了一种能够有效地提高高频段频谱资源利用率,自适应地为天波超视距雷达选择工作频率点的方法。该方法利用接收阵列的部分阵元做宽带接收,然后以一定的频率间隔用自适应波束形成的方法对干扰进行分析,并以子阵输出平均功率最小为准则选取最佳工作频率点。仿真结果表明,该方法能够有效地为天波超视距雷达提供最佳工作频率点。Abstract: A method of adaptive operating frequency selection for Over-The-Horizon Radar (OTHR), which can effectively improve the usage of spectrum resource in HF-band, is presented in this paper. A subarray with wide-band receiver is used to receive interference signals, and then the adaptive beamforming algorithm is applied to the signals separated by a few kilohertz. The frequency at which the array has the minimum output power is selected as the optimal operating frequency. Simulation results show that the method can effectively provide the optimal operating frequency for OTHR.
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