P.A. Kashevsky1

1 JSC “CNIRTI named after academician A.I. Berg” (Moscow, Russia)

1 k0335@yandex.ru

Problem statement. The growing use of information received by airborne radio monitoring systems (VRM) in real time also places increased demands on the accuracy of determining the coordinates of radio-emitting objects (RIO). An important, and in some cases the main reason preventing the achievement of the required levels of accuracy in determining the coordinates of RIO by VRM systems using classical bearing methods are all kinds of interfering factors in the observation channel. Solutions known in the field of VRM to reduce the influence of interfering factors on the accuracy of determining the coordinates of the RIO are based on the use of various ways to eliminate (weaken) them, as a rule, in places of occurrence, the implementation of which does not always provide the required efficiency, and in some cases is problematic.

Goal. To develop, based on the Petrov two-channel principle, a new method for determining the coordinates of terrestrial RIO by VRM systems, which would ensure a reduction (compensation) of the influence of interfering factors on the accuracy of estimating their (RIO) location.

Results. The necessary conditions for the applicability of the Petrov two-channel principle in passive VRM systems are substantiated; a method has been developed to reduce (compensate) the influence of interfering factors on the accuracy of estimating the coordinates of terrestrial RIO, including the operations and variants of the proposed method; a methodology has been developed for the analytical synthesis of optimal algorithms for calculating the values of errors in determining the coordinates of RIO at certain points in the state space of objects according to their known values in others; for a special case, algorithms for the implementation of the proposed method are synthesized using the example of the angle-measuring method for determining the coordinates of ground-based fixed objects; the results of the computational experiment confirmed the operability and higher (compared with the classical angle-measuring method) efficiency (in terms of the size of the working area and accuracy) of the proposed method.

Practical significance. The proposed method for determining the coordinates of RIO by VRM systems can be used both independently and as an addition to classical passive radar methods to increase their working areas and (or) accuracy.

Kashevsky P.A. The method of "joint" determination of coordinates of radio-emitting objects by aerial radio monitoring systems based on the principle of two-channel Petrov. Radiotekhnika. 2024. V. 88. № 10. P. 127−136. DOI: https://doi.org/10.18127/j00338486-202410-14 (In Russian)

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