METHOD AND APPARATUS FOR FAST COMPUTATION OF SIGNAL UNCERTAINTY FUNCTION BASED ON REVERBERATION INTERFERENCE Russian patent published in 2013 - IPC G01S15/00 G01S13/00 

FIELD: radio engineering, communication.

SUBSTANCE: apparatus for calculating a signal uncertainty function based on reverberation interference has an analogue-to-digital converter whose output is connected to the input of a recirculator, the output of which is connected to the input of a fast Fourier transform computer, the output of which is connected to the first input of a multiplier unit. The apparatus further includes: a negative frequency nulling unit, the input of which is the output of the fast Fourier transform computer, and the output is connected to the first input of the multiplier unit; read-only memory, the output of which is connected to the second input of the multiplier unit, the output of which is the input of a unit for calculating two-dimensional inverse fast Fourier transform, the output of which is connected to the input of a squared modulus computer, the output of which is the output of the apparatus; a control device whose outputs are connected to control inputs of the analogue-to-digital converter, the fast Fourier transform computer, the multiplier, the unit for calculating two-dimensional inverse fast Fourier transform and the squared modulus computer.

EFFECT: high noise-immunity of detecting signals on the background of reverberation interference.

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