MODE OF PROCESSING OF A COMPLEX SIGNAL AT ITS DETECTION Russian patent published in 2006 - IPC G01S7/36 

FIELD: the invention refers to the field of radio technique and may be used for detection of complex signals in radio technique systems of communication, in radio location and radio navigation.

SUBSTANCE: the mode is in receiving signal of known duration and its transformation to a video frequency, multiplication of the received signal with two reference signals which are cophasal and quadrature components of the expected signal, integration with the discharge of the results of multiplication on an interval of time, comparison of the signal with the threshold for carrying out a decision about detection, the interval of time of integration is installed equal T_c / N, where N is a correlation of the maximum expected change of the phase of the signal during a period T_c to p/2 radian, N pairs of quadrature components of signals received as a result of operations of integration on N successive intervals of time are memorized, N+1 pairs of summary signals are formed by way of algebraic addition of memorized signals, the received N+1 pairs of summary signals are quadraturily detected and compared according to the amplitude of the received N+1 amplitude signals. At that the signal of the maximum amplitude is a signal for comparison with the threshold of detection, then algebraic addition of the memorized signals is executed.

EFFECT: increases antijamming.

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