METHOD FOR DETERMINING AZIMUTH AND ELEVATION ANGLES OF ARRIVAL OF COHERENT SOURCES

摘要

The present invention relates to a method for jointly determining the azimuth angle 0 and the elevation angle A of the wave vectors of P waves in a system comprising an array (1001) of sensors, a number of waves out of the P waves being propagated along coherent or substantially coherent paths between a source and said sensors, the method comprising at least the following steps: ■ selecting a subset of sensors from said sensors to form a linear subarray (1002) of sensors; ■ applying, to the signals from the chosen subarray, an algorithm according to a single dimension to decorrelate the sources of the P waves; ■ determining a first component w of said wave vectors by applying, to the signals observed on the sensors of the chosen subarray, a goniometry algorithm according to the single dimension w; ■ determining a second component u of said wave vectors by applying a goniometry algorithm according to the single dimension u to the signals from the entire array of sensors; ■ detennining θ and Δ from w and u. Figure 10 to be published