天波超視距雷達(dá)工作頻率點(diǎn)的自適應(yīng)選擇
Adaptive Operating Frequency Selection for SKW-OTHR
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摘要: 該文提出了一種能夠有效地提高高頻段頻譜資源利用率,自適應(yīng)地為天波超視距雷達(dá)選擇工作頻率點(diǎn)的方法。該方法利用接收陣列的部分陣元做寬帶接收,然后以一定的頻率間隔用自適應(yīng)波束形成的方法對(duì)干擾進(jìn)行分析,并以子陣輸出平均功率最小為準(zhǔn)則選取最佳工作頻率點(diǎn)。仿真結(jié)果表明,該方法能夠有效地為天波超視距雷達(dá)提供最佳工作頻率點(diǎn)。
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關(guān)鍵詞:
- 超視距雷達(dá)(OTHR); 自適應(yīng); 頻率選擇
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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