In 1964-1966 and 1967-1971 yr. were carried out two basic scientific research works in the region of the air patrol. The number of the primary tasks of the first work included the production of tactical technical requirements for RLS, the analysis of reflection spectra from the earth and the selection of the methods of the selection of pinpoint targets against their background, obtaining experimental material with the reflecting properties of different terrestrial covers and the formulation of requirements for the basic components RLS. The specific recommendations by construction OF RLS of two forms were the sum of this scientific research work:
• RLS, working in the decimeter wave band with the sufficiently low pulse repetition frequency, which ensures uniqueness on distance in the limits of radio horizon, for the fixed points and the low-mobility carriers, which make it possible to use antennas of large sizes;
• RLS, which work in the centimeter s-band the average and high frequency of repetition, with the ambiguity on the distance - for the high-speed carriers, which rigidly limit the maximum overall sizes of antenna.
Two basic types of aviation early warning systems are outlined: on the captive balloons and on the aircraft.
The second work was directed toward a study and the experimental confirmation of the possibilities of the aviation radar complexes of long-range detection, work on any surfaces, and also the creation of a number of their components. In the process of fulfilling this work they were created and checked under the actual conditions experimental high(ly)-coherent RLS of decimeter and centimeter wave bands, was carried out the large volume of works on study and creation of the fundamental sets RLS of patrol - antennas with the small side lobes of the radiation pattern, coherent receiving-transmitting devices with the lowest possible level of amplitude-phase noise, devices of method and processing of radar signal, that possess low factor of the noise and high linearity with the large dynamic range of input signals.
The mock-up RLS of decimeter range in 1968 g. was established on Tarki- tau mountain in g. makhachkala. With the work of this RLS it was possible to completely suppress reflections from the broken ground to the north from g. makhachkala and to reveal the small size aircraft (An-2 and MiG-17) at distances 100… 130 km with the aid of experimental RLS was demonstrated the reality of the creation of the aerostatic or highland radar posts of the detection of low-altitude targets. In 1970 g. the development was assigned, while in 1977 g. was accepted for the armament complex “PERISCOPE- V” - THE USSR'S first highland RL- post, capable of detecting the small size low-altitude targets against the background of earth reflections (chief designer [Metelskij] a. T.). Work is honored the State Prize TO THE USSR for 1981 g.
Was also created and established on the helicopter Mi-10 the experimental model of quasi-continuous RLS, which works in the centimeter wave band. The large-dimension revolving antenna was placed in the fairing under the fuselage of helicopter. The amplitude-phase noise of the receiving-transmitting device made it possible to reveal the echo signals of purpose in the interferences from the earth, which exceed them on 80… 85 dB. The possibility of detection by quasi-continuous RLS of the aircraft of the against the background earth's surface at the significant distances was demonstrated with the aid of the experimental model.
The results of these two scientific research works made it possible to approach the development of the aviation complex of radar surveillance and guidance.
In the cycle of works on a study and the scientific development of the direction of radar, which solves the detection problem of the purposes above the earth, in 1989 g. to specialists [MNIIP] is awarded the State Prize TO THE USSR.