PRV-13 Mobile Radar Altimeter Modernisation

Mobile Radar Altimeter Modernisation

Mission

The PRV-13 radar altimeter modernisation is to improve its tactical and technical characteristics and extend service life, namely: to increase target acquisition range by augmenting receiver sensitivity, to enhance protection against passive interference, clutter, meteorological ghosts and their combinations with non-synchronous pulse jamming, to increase reliability characteristics, and to reduce power consumption.

The modernisation envisages replacement of the existing electronic equipment in the main functional parts of the radar system with new equipment based on modern components.

It comprises a number of unit/component replacements: • of the input microwave amplifiers employing the UV-54 travelling wave tubes by solidstate microwave amplifiers; • of the hydrogen thyrotron in the modulator by a metal-ceramic one; • of the high-voltage vacuum rectifiers by semiconductor diodes; • of the receiver units in main and auxiliary channels by ones employing modern components; • of the oscillator unit by one built with the 3rd/4th-generation components employing

SHF micro-assemblies; • of the moving target selection, nonsynchronous interference protection and synchronisation equipment by equipment built with modern electronic components; • of the circular scan and altitude indicators by

cathode-ray tubes together with their beam-

The equipment introduced does not require scheduled maintenance, and the upgraded PRV-13 total maintenance time is reduced by 1.4-1.6 times.

If the modernisation is carried out along with the renewal repair of the nonmodernised equipment of the PRV-13 radar altimeter, its operating life is restored to at least 80% level.

Thus, the modernisation allows to create practically new, modern radio altimeter capable of performing airspace control missions.

PRV-13 Upgraded PRV-13

Max detection range, km 310 Receivernoise factor, dB 7 Clutter rejection factor, dB 17 Asynchronous interference suppression factor, dB 17 Operating life restoration, % Operating life extension, years Upgraded equipment operating life, hours, at least -

* - modernisation+renewal repair

350 4,5 30-36

30 80* 8-10*

10,000