Beam domain coherent azimuth estimation method and system based on fluctuated phase alignment
A technology of azimuth estimation and phase alignment, applied to radio wave measurement systems, positioning, measurement devices, etc., can solve problems such as not considering the transmission channel
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[0060] The present invention will be further described now in conjunction with accompanying drawing.
[0061] Before the method of the present invention is described in detail, a brief description of the sonar array on which the method of the present invention is based is firstly given.
[0062] Such as figure 2 As shown, the sonar array based on the method of the present invention includes M hydrophones (also referred to as primitives of the sonar array), and these hydrophones are jointly arranged into a long line array, and the distance between each hydrophone The distances are equal, and d represents the distance between the hydrophones.
[0063] refer to figure 1 , the method of the present invention comprises the following steps:
[0064] Step 1), performing cumulative division of frequency points on the received wideband array element domain signal to obtain an array element domain signal of a single frequency point.
[0065] The radiated noise signal of the surface...
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