基于幅度的自适应子阵列加权相关干涉仪测向算法研究

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中图分类号： TN957 文献标志码： A

Abstract： To address the phase ambiguity resolution failure and error divergence caused by the equal-weight processing strategy of conventional omnidirectional array antennas under low signal-tonoise ratio conditions，an amplitude-based adaptive sub-array weighted correlation interferometer direction-finding algorithm is proposed，which adaptively selects high-SNR array elements to construct sub-arrays based on the amplitude characteristics of the received signals，and introduces weighting constraints on the correlation function using the baseline-to-wavelength ratio （ d/λ ）to enhance effective spatial information and suppress noise effects. The experimental results demonstrate that the proposed algorithm maintains good stability across theentire frequency band and significantly improves the system robustness and direction-finding accuracy which has important engineering applications value.

Key words：uniform circular array；interferometer direction finding；adaptive sub-array；calibration weighting；double-layer array

0 引言

随着现代电子战环境的日益复杂，电子侦察与被动探测技术在态势感知、威胁预警及情报获取中的战略地位愈发显著。（剩余12461字）