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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Using sources of opportunity to compensate for receiver mismatch inHF arrays
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Using sources of opportunity to compensate for receiver mismatch inHF arrays

机译：利用机会来补偿HF阵列中的接收机失配

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摘要

The spatial processing performance of adaptive sensor arrays is often limited by the nonidentical frequency responses of the receivers in the array over the passband of interest. Addressed here is the problem of estimating digital compensation for mismatches between receiver passbands in high frequency (HF) antenna arrays using interference sources of opportunity. A mathematical model of ionospherically-propagated multipath HF interference is used to develop an adaptive algorithm which estimates the receiver frequency response corrections for each receiver. The effectiveness of the proposed algorithm is experimentally demonstrated and compared against (1) a commonly used least squares technique, and (2) a highly accurate calibration system using data collected by the receiving antenna array of the Jindalee over-the-horizon radar near Alice Springs in central Australia
机译：自适应传感器阵列的空间处理性能通常受到阵列中接收器在目标通带上不同频率响应的限制。此处解决的问题是使用机会干扰源估算高频（HF）天线阵列中接收器通带之间的失配的数字补偿问题。电离层传播的多径HF干扰的数学模型用于开发自适应算法，该算法为每个接收器估算接收器频率响应校正。实验证明了所提算法的有效性，并与（1）常用的最小二乘技术和（2）使用爱丽丝附近Jindalee超视距雷达接收天线阵列收集的数据的高精度校准系统进行了比较。澳大利亚中部的温泉

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