The Key technology of Blind Source Separation of Satellite-Based AIS

摘要

Aiming at the problem of blind source separation of satellite-based AIS (Automatic Identification System) processing, an algorithm based on counteraction theory of antenna space was proposed to separate the mixing signals. Firstly we make use of the difference of attenuate and delay of the signal arriving at the antennas, and then add the signal to other channel signal for counteraction after phase shift, which takes the least modulus norm as the assessment rule. We search the phase angle from the whole filed. The algorithm can recover the signal wave directly, the efficiency of the algorithm is proved in theory and computer simulations.