Abstract: A method for jointly determining the azimuth angle ? and the elevation angle ? of the wave vectors of P waves in a system comprising an array 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, includes at least the following steps: selecting a subset of sensors from said sensors to form a linear subarray 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; determining ? and ? from w and u.

Abstract: A method for interpolating steering vectors a(?) of a sensor network, the sensor network receiving signals transmitted by a source, characterized in that, for the interpolation of the steering vectors a(?), use is made of one or more omnidirectional modal functions z(?)k where z(?)=exp(j?) where ? corresponds to an angle sector on which the interpolation of the steering vectors is carried out.

Abstract: A method for jointly determining the azimuth angle ? and the elevation angle ? of the wave vectors of P waves in a system comprising an array 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, includes at least the following steps: selecting a subset of sensors from said sensors to form a linear subarray 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; determining ? and ? from w and u.

Abstract: A method for interpolating steering vectors a(?) of a sensor network, the sensor network receiving signals transmitted by a source, characterized in that, for the interpolation of the steering vectors a(?), use is made of one or more omnidirectional modal functions z(?)k where z(?)=exp(j?) where ? corresponds to an angle sector on which the interpolation of the steering vectors is carried out.