DIGITAL-ANALOG MATCHED FILTER Russian patent published in 2006 - IPC H01K13/00 

FIELD: engineering of digital-analog matched filters.

SUBSTANCE: digital-analog matched filter contains limiter, two multiplexers, supporting voltage generator, clock impulse generator, two solving devices, two shift registers with number of digits equal to 2×B each, two adders, squaring device, device for extracting square root from sum, while outputs of each second digit of shift registers are connected to inputs of adders, and outputs of adders are connected to inputs of squaring devices. Outputs of each (2n×i) digit of shift registers, with number of digits equal to 2B=(2n×m), where i=I...m through 2m phase manipulators are connected to 2m inputs of adding matrix, 2n outputs of which are connected to branches of analog delay line and output of supporting generator is connected to inputs of 2m phase manipulators.

EFFECT: increased relation of autocorrelation spike to side leaves and surges of mutual correlation function and simplification of circuit of filter for signals with large base and large duration.

2 dwg