Coprime array DOA estimation method based on quantum penguin search mechanism in strong impact noise environment
A shock noise and quantum technology, applied in the field of coprime array DOA estimation, can solve the problems of low signal-to-noise ratio high-precision direction finding, inability to measure the direction of the coherent source wave, and low estimation accuracy.
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[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The overall flow of the invented direction finding method is as follows: figure 1 Shown, technical solution of the present invention comprises the following steps:
[0037] The present invention designs a coprime array DOA estimation based on the quantum penguin search mechanism in a strong impact noise environment, and its specific steps are:
[0038] Step 1: Obtain the snapshot sampling data of the signal received by the coprime array, and obtain the fractional low-order covariance matrix of the infinite norm weighted signal.
[0039] The coprime array is a non-uniform linear array obtained by placing two uniform linear arrays overlapping at the starting point. The first uniform linear array contains y 2 array elements, the distance between every two adjacent array elements is y 1 d; another uniform linear array containing y 1 array element...
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