METHOD TO SUPPRESS SIDE TABS OF AUTOCORRELATION FUNCTION OF WIDEBAND SIGNAL Russian patent published in 2014 - IPC G01S7/36 

FIELD: radio engineering, communication.

SUBSTANCE: they perform radiation of pulse phase-code-manipulated signals with variation of the code of phase manipulation from a period to a probing period, they perform reception of reflected signals and their processing, at the same time in each probing period they radiate one of two phase-code-manipulated signals matched with each other, in which amplitudes of side tabs of autocorrelation functions are equal in module, but have opposite signs, and the main peaks of autocorrelation functions are equal. When reflected signals are received, they compress them separately for each period of probing, the results of reflected signals compression are summed with a delay of all preceding results of compression relative to the latter in accordance with the temporary position of matched phase-code-manipulated signals. To produce a summary autocorrelation function, they use two or more compression results multiplied by weight ratios, such as elements of the Pascal triangle.

EFFECT: compensation of Doppler effect and accordingly increased resolving capacity of radar systems and increased noise immunity of a communication signal in communication facilities.

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