A. L. Priorov - Dr.Sc. (Eng.), Associate Professor, P.G. Demidov Yaroslavl State University. E-mail: andcat@yandex.ru
E. E. Tsubanov - Lecturer, Department of Radio Engineering systems, a branch of the Mozhajskij Military Space Academy (Yaroslavl). E-mail: tzubаnoff.еvgeny@уаndex.ru

One of the important ways to improve radar weapon systems is increasing the efficiency of its operation under conditions of electronic warfare. This is especially true in the case of impact to radar by interference on the main lobe of the antenna pattern. The paper deals with method of solving this problem by additional processing of additive mixture of signal and noise in the receiver channels. They are created by sources with the angular basis, not exceeding the width of the antenna beam. In contrast to traditional methods, in this case, separation of the useful pulse signal from the noise hindrance is not performed in the range channel but in the angular one. This is achieved by extracting the useful information that is the result of interference signals from two sources spaced apart with some angle. Also, the fluctuations of angular error signal produced by direction finder can be allocated at the moment when the signal and the noise appear simultaneously. As a result, proposed algorithm is reduced to the consistent implementation of the three the most significant processes: normalization of discrete samples of the total channel process by the same name samples of the discrete difference channel process, intrapulse incoherent accumulation result of normalization and incoherent inter-period accumulation (in the case of bursting model of probing signal). A processing algorithm, a block diagram of device implementing this algorithm, the features of such variant of implementation have been considered in the paper.