Adaptive beamformer design method based on Bayesian compressed sensing algorithm
An adaptive beam, Bayesian compression technology, applied in instruments, re-radiation of sound waves, radio wave measurement systems, etc., can solve the problems of automatic tracking of desired signals, inability to adapt to the needs of work, etc., and achieve a good level of sidelobe control. , the effect of large output signal to drying ratio
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[0060] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.
[0061] The present invention provides an adaptive beamformer design method based on the Bayesian compressed sensing algorithm. The method realizes more accurate reconstruction of the interference plus noise covariance matrix through the Bayesian compressed sensing algorithm. Compared with other automatic The adaptive algorithm has a larger output signal-to-dry ratio, and at the same time, the sidelobe peak of the beam pattern is constrained at a lower level.
[0062] In this embodiment, a 20×20 two-dimensional transducer array is considered in the design. figure 1 It is...
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