N.Yu. Babanov1, V.V. Dmitriev2, I.N. Zamyatina3, S.V. Lartsov4

1,4 Nizhny Novgorod State Technical University n.a. R.E. Alekseev (Nizhny Novgorod, Russia)
2, 3 JSC “FNPC “Research Institute of Radio Engineering” (Nizhny Novgorod, Russia)
4 Giprogaztsentr JSC (Nizhny Novgorod, Russia)
1 babanov@nntu.ru, 2 dmit.v@mail.ru, 3 zamirnik@gmail.com, 4 lartsov.sergey@gmail.com

For nonlinear radars of remote search mine with electronic fuses, a mandatory function after detecting this type of nonlinear scatterer is to determine its coordinates. At the same time: 1) target localization equipment should be basically the same as detection equipment; 2) sensing should be in the range of 200-1000 MHz with a band of about 10% due to the dimensional limitations of the carrier and the frequency-spatial properties of mines with electronic fuses; 3) it has to be used to determine range and bearing Pulse-time methods are used to make measurements based on the first received radio pulse, due to re-reflections from the interface of media and surrounding objects; 4) it is necessary to take into account the specifics of the interaction of the pulsed probing signal with a nonlinear scatterer at frequencies of even nonlinear products associated with a priori unknown polarities of the inclusion of nonlinear elements of mine. As a result of these limitations, primarily frequency limitations, traditional monopulse radar methods do not allow for target localization accuracy of better than 1.5 meters, which is insufficient for practice.

Aim – the search for a new method that makes it possible to ensure the accuracy necessary for practice in determining the coordinates of nonlinear scatterers – mines with electronic components detected by a nonlinear radar.

A new method of synchronous processing of the received signal in the receiver of a single-frequency or two-frequency nonlinear radar is proposed, which allows, with an increase in the number of processed radio pulses, to simultaneously improve the signal-to-noise ratio and resolution parameters when determining the range to a nonlinear scatterer , which allows using time-pulse methods for determining the target location with the necessary accuracy.

The new method can be applied to nonlinear single-frequency or dual-frequency remote mine search radars with electronic fuses with localization of the detected mine location.

Babanov N.Yu., Dmitriev V.V., Zamyatina I.N., Lartsov S.V. On determining the coordinates of a nonlinear scatterer using a nonlinear radar. Nonlinear World. 2025. V. 23. № 2. P. 63–76. DOI: https:// doi.org/10.18127/ j20700970-202501-07 (In Russian)

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