CLOCK SYNCHRONIZATION DEVICE OF MATCHED DISCRETE FILTER Russian patent published in 2003 - IPC

FIELD: radar, radio navigation; discrete information transfer systems. SUBSTANCE: device that can be used, for instance, in systems handling composite signals based on phase (0,π) modulated pseudorandom trains and implementing discrete signal processing methods has multipliers 1, 7, 8, first and second solvers 2, 16, shift register 3, adder-decoder 4, clock generator 5, squarers 6, 13, 14, 0,π phase shifter 9, two integrators 10, 11, digital computer 12, adder 15, and switch 17. Device functions to detect composite signal whose clock frequency is known and to change phase of detected clock-frequency wave so as to produce phase-locked loop of clock generator and to raise signal-to-noise ratio in average by 2.1 dB. EFFECT: enhanced signal-to-noise ratio at device output. 1 cl, 1 dwg