Location method for radio signal sources uses network of sensors linked to two receivers providing data for processing with covariance matrix method

摘要

The system uses multiplexed signals and only two receivers to enable derivation of accurate alignment of source radiation. The method for locating radio transmitting sources uses a two-channel, high resolution radio-goniometer. This comprises a network with a specified number, N, of sensors (21 ... 2N). The method includes multiplexing (4) the signals supplied by the N sensors on the inputs of just two receivers (31, 32), and estimating with a processing device (6) coupled to the outputs of the receivers the angle of incidence of the waves transmitted by the sources, based on an estimate of the covariance matrix of the signals supplied by the two receivers. The process for determining angles may use an algorithm based on maximum probability. Alternatively this may use a MUSIC algorithm.