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MAXIMUM LIKELIHOOD ANGLE ESTIMATION OF WIDEBAND SIGNALS USING PHASED ARRAY ANTENNAS
MAXIMUM LIKELIHOOD ANGLE ESTIMATION OF WIDEBAND SIGNALS USING PHASED ARRAY ANTENNAS
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机译：相控阵天线在宽频带信号最大似然角估计中的应用
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摘要
A method for estimating a target direction of a wideband signal received on an electronically steered array includes: applying convolutional or stretch processing to spatial frequency data of the wideband signal; initializing a stabilization direction to a beam pointing direction; stabilizing the spatial frequency data to the stabilization direction; compressing the spatial frequency data to a plurality of frequency range or time bins; selecting range or time bins and forming a covariance matrix; calculating an estimated target direction using the covariance matrix; determining if a stabilization direction accuracy condition is met; recalculating the stabilization direction based on the estimated target direction if the stabilization direction accuracy condition is not met; and iteratively repeating until the stabilization direction accuracy condition is met.
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