METHOD TO SEARCH FOR NOISE-LIKE SIGNALS WITH MINIMUM FREQUENCY MANIPULATION Russian patent published in 2011 - IPC H04L27/14 

FIELD: information technologies.

SUBSTANCE: at each cycle of searching, counts of quadrature components of an input noise-like signal are accumulated at clock intervals, memorised, 4N counts of quadrature components of the input noise-like signal Z_1k and z_2k are generated. The sign double-stage approximation of the quadrature reference video signals I_k and Q_k shape is carried out, results of quadrature components z_1k and Z_2k multiplication are combined in pairs with counts of approximated quadrature reference video signals I_k and Q_k, 2N counts of quadrature components of mutual correlation function are calculated. N values of this function module are separated, the value of the code sequence element delay is identified to set synchronism of a code generator with the received signal.

EFFECT: reduction of time required to search for noise-like signals at high noise-immunity of reception.

2 dwg