DEVICE FOR SEARCHING NOISE-LIKE SIGNALS Russian patent published in 2006 - IPC H04B1/10 

FIELD: radio communications; broadband-signal communication systems.

SUBSTANCE: proposed device has correlation sync channel incorporating series-connected first pseudorandom-sequence generator and correlator unit, as well as decision unit. Correlation data signal has series-connected correlator and comparison unit whose other input is connected to output of threshold shaper, input of the latter being integrated with signal inputs of correlation sync channel correlator unit and correlator; connected to reference input of the latter is output of second pseudorandom sequence generator. Output of correlation sync channel decision unit and that of correlation data channel comparison unit are connected to respective inputs of control unit whose outputs are connected to control inputs of first and second pseudorandom signal generators. Novelty is that newly introduced in correlation sync channel are series-connected switch, analog-to-digital converter, random-access memory unit, multiplier whose reference-signal input is connected to output of additional pseudorandom signal generator, and filter. Outputs of correlator unit are connected to respective inputs of switch and filter output, to decision unit input. Control inputs of switch and additional generator are connected to respective outputs of control unit.

EFFECT: reduced time of search.

1 cl, 3 dwg