Voice DOA estimation method based on ResNet
A DOA and voice technology, which is applied to the direction or offset system, direction finder using ultrasonic/sonic/infrasonic waves, etc., can solve the problem of inaccurate voice DOA estimation, and achieve the effect of reducing network complexity
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[0056] Such as figure 1 As shown, the present invention provides a kind of speech DOA estimation method based on ResNet, extracts feature from generalized cross-correlation (GCC), utilizes ResNet to learn the nonlinear mapping relation between feature and DOA from a large amount of simulated microphone array signals, in On the basis of the rough estimation of the traditional wideband MUSIC method, multiple ResNets are used for accurate and robust DOA estimation.
[0057] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0058] Broadband MUSIC positioning
[0059] The microphone array has M array elements with a spacing of d, and each array element is the same omnidirectional microphone, and the far-field signal is incident at an angle of θ. Assume that the noise is Gaussian white noise independent of the incident signal, with a mean of 0 and a variance of σ 2 , then th...
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