UNITED24 - Make a charitable donation in support of Ukraine!

Space


Object 2505 5N26 LE-1 lidar

The possible opportunity of laser radars to provide higher accuracy especially the target position had been studied in OKB "Vympel", from 1962 to the end held OKB "Vympel", with the introduction of forecasts of NG Basov, research, first in 1963 in the Military Industrial Commission (MIC, body of municipal control of the military-industrial complex of the USSR) was submitted to the creation of a pilot project of the laser radar for missile defense, received a conditional title LE-1. The decision to develop at the Sary-Shagan experimental setup with a range of up to 400 kilometers an act approved in September 1963 in 1964-1965 the project was being developed in OKB "Vympel" (laboratory G.E.Tihomirova). Design of optical systems, radar was conducted GOI (Lab P.P.Zaharova). Construction of the project started in late 1960.

The project was based on the work of LPI research and the creation of ruby lasers. Latitude had to make at the time kutsee search for targets in the "field error" radar, which provided target designation laser radar, which sought a very large at the time average power of the laser emitter. The final choice of the structure of the real state of the locator led to work on a ruby laser characteristics are achievable in practice have been significantly lower than initially anticipated average power of the 1st laser instead of the expected 1 KW was in those years about 10 watts. Experiments conducted in the laboratory of the Lebedev Institute of NG Basov, showed that the capacity growth by alternately amplify the laser signal in the chain (cascade) laser amplifiers, as envisaged initially, can only be to a certain level.

Very massive radiation destroyed laser crystals. There were also difficulties associated with the thermo-optical distortions of radiation in crystals. In this regard had to be installed in the locator is not one, but 196 of alternately operating at 10 Hz laser with a pulse energy of 1 J. The total average output power of multi-channel laser locator transmitter was about 2 kW. This has led to considerable complication of his scheme, which was a multi-beam radiation at, and when the signal was recorded. Required to make high-precision high-speed optical device for generating, switching and guidance 196 laser beams that determined the search field in the space of the target. In the emergency locator device used matrix of 196 specially designed PMT. Complicated puzzle errors associated with moving bulky opto-mechanical systems of the telescope and optical-mechanical switches locator, also with distortions introduced by the atmosphere. The total length of the optical path locator reached 70 m and it consisted of many hundreds of optical parts lenses, mirrors and plates, including moving, mutual adjustment which was to persist with high accuracy.

In 1969, the project LE-1 was transferred to the CCB "Ray" of the Ministry of Defense Industry of the USSR. The main designer of the LE-1 was assigned N.D.Ustinov. In 1970-1971 gg development of radar LE-1 was completed as a whole. Took part in the development of radar broad cooperation defense industry companies: LOMO forces and Leningrad plant "Bolshevik" was created by the unique characteristics of the telescope complex TG-1 to LE-1, the chief designer of the telescope B.K.Ionessiani (LOMO). This telescope with a diameter of 1.3 meters mirror provided the highest optical quality of the laser beam when working with velocities and accelerations in the hundreds of times more than the highest than that of conventional astronomical telescopes. Were made many new nodes locator: clear fast scanning and switching systems for controlling a laser beam photodetectors electrically processing units and synchronization signals, and other devices. Management locator was automatic with the introduction of computer technology, was connected with the locator radar stations polygon with the number of data lines.

With the participation of CDB "Geophysics" (D.M.Horol) developed a laser transmitter, which included 196 very committed at the time of lasers, their cooling system and power supply. For LE-1 was cooperated creating quality ruby laser crystals, nonlinear crystals KDR and many other parts. Not counting N.D.Ustinova development LE-1 was ruled O.A.Ushakov, G.E.Tihomirov and S.V.Bilibin.

Construction of the facility began in 1973 and in 1974 completed commissioning and testing of the object started with a telescope TG-1 radar LE-1. In 1975, during the tests was reached confident location type target plane at a distance of 100 km, work began on the location warhead ballistic missiles and satellites. In 1978-1980 gg by LE-1 were carried out high-precision trajectory measurements and wiring missiles, warheads and gallakticheskih objects. In 1979, the laser radar LE-1 as a tool for precise trajectory measurements taken by a joint technical service to / h 03080 (GNIIP number 10 of the Ministry of Defense of the USSR, the Sary-Shagan).

For the creation of the LE-1 radar in 1980, CDB staff, "Ray" and awarded the Lenin Prize of the USSR Municipal. Active work on the locator LE-1, including with the modernization of the electrical circuits and dr.oborudovaniya lasted until the mid-1980s. Were working on getting about objects noncoordinate disk imaging (disk imaging on the form of objects, for example). On October 10, 1984 lidar 5N26 / LE-1 measured the characteristics of the target reusable spacecraft "Challenger".




NEWSLETTER
Join the GlobalSecurity.org mailing list



 
Page last modified: 08-03-2018 18:02:15 ZULU