High-Precision, Safe Landing Systems

Oct. 15, 2013 Rostec

KRET has developed a multispectral aircraft landing system that greatly reduces the risk of emergencies

Landing an aircraft is one of the most difficult aspects of piloting. A majority of accidents happens during this stage. KRET experts are developing special landing systems that will greatly reduce the risks associated with landing.

The multispectral landing system developed by KRET specialists provides an extremely accurate and reliable method for landing both manned and unmanned aircraft. The system is able to guide the aircraft to the ground and direct movement, braking, taxiing, and other maneuvers.

In developing the system, the Ryazan Instrument Factory has drawn on its extensive scientific and technological experience and manufacturing potential. Premier domestic aircraft, such as MiG-29, Su-27, and Su-30, all use products from the Ryazan factory. 

To increase landing safety, the system relies on two primary components. First, the electronic component–the relative coordinate positioning system (SOOK)–uses satellite technology to determine the flight parameters of the aircraft and the location of the landing site.

Aircraft coordinates and speed are determined using information from GLONASS and GPS satellites. The two parts of the landing system, one of which is on the aircraft, and the other which is at the intended landing site, directly communicate with each other. The standard deviation of the system in determining coordinates is no more than .6 meters and no more than .1 meters per second for determining speeds.

The second component is an optoelectronic landing system that uses different spectral channels and functions for image processing.

The system, which is onboard the aircraft, measures distances and calculates location, as well as approach and descent speed. The video monitor displays the aircraft as it lands. The range of error for aircraft up to 10 kilometers away is minimal, with a relative angular deviation of no more than 60” and a distance deviation of no more than a meter.

The presence of the two components, which have fundamentally different ways of determining aspects of movement, greatly increases the survivability of the system, and thus the probability of a safe landing.