Adaptive beamforming method based on linearly constrained minimum variance (LCMV) solution for active jamming in phased array radar design.

Abstract

This invention proposes an adaptive beamforming method based on a linearly constrained least variance (LCMV) solution for active jamming in phased array radar design. This method allows the expected target signal to pass through without distortion while jamming from active jamming devices is suppressed by constraining the orientation vectors at specified directions, then applying the Lagrange multiplier method to find the optimal weight matrix for all array elements. This allows the radar to maintain beam scanning capability towards designated targets while suppressing active jamming signals from any direction that might affect radar performance.

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