发明名称 |
MAXIMUM LIKELIHOOD ANGLE ESTIMATION OF WIDEBAND SIGNALS USING PHASED ARRAY ANTENNAS |
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. |
申请公布号 |
US2014132451(A1) |
申请公布日期 |
2014.05.15 |
申请号 |
US201313889144 |
申请日期 |
2013.05.07 |
申请人 |
RAYTHEON COMPANY;RAYTHEON COMPANY |
发明人 |
HANSEN CHARLES T. |
分类号 |
H01Q3/00 |
主分类号 |
H01Q3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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