Large-scale array target orientation estimation method under combined influence of impulse noise and non-uniform noise

The invention provides a large-scale array target orientation estimation method under the combined influence of impulse noise and non-uniform noise, and belongs to the field of underwater acoustic array signal processing. According to the method, the variational sparse Bayesian signal model based on the underwater acoustic array is constructed, the S-t distribution pulse noise model is established, the Bernoulli distribution is adopted to detect the pulse noise existence probability, the designed model is closer to the real application, the non-uniform Gaussian noise is simulated by using the non-uniform Gaussian distribution for the background noise, and the accuracy of the detection result is improved. The invention provides a high-precision direction of arrival estimation method under the condition that non-uniform noise and impulse noise are mixed. Compared with an existing similar wave direction estimation method, the method is higher in estimation precision and higher in adaptability. 本发明提供一种脉冲噪声和非均匀噪声联