Procedure for the estimation of matrices of covariance and coherence in data obtained through multichannel coherent systems. (Machine-translation by Google Translate, not legally binding)

摘要

Procedure for the estimation of covariance matrices and coherence in data obtained through coherent multichannel systems. The object of the present invention is a method for the estimation of covariance and coherence matrices in multi-channel data, obtained by means of multichannel coherent systems. These systems are based on the transmission and reception of electromagnetic waves in a coherent way, that is, they store both the amplitude and the phase of the electromagnetic waves dispersed by the object that is illuminated by the system. Due to the complexity of the dispersion process, the stored data is affected by the speckle noise component. The present invention details a method for filtering the ruddy speckle component in multichannel data, expressed by the covariance or coherence matrices, based on the information of the existing correlation between the different information channels. (Machine-translation by Google Translate, not legally binding)