FIELD: aircraft engineering; measuring equipment.
SUBSTANCE: group of inventions relates to the helicopter landing systems. In the first option, the landing system contains the ultrasonic altimeter, the receiver, the information processing and control unit, the display means, four acoustic receivers, the data processing unit, the transmitter. Processing unit contains four adjustable filters, four analog-to-digital converters, the unit for calculating spatial coordinates, units for calculating height, height deviation indicators, spatial coordinate deviation indicators, three storage units, which are connected in a certain way. System according to the second option differs from the first one in that the data processing unit is made in the form of a computing device, which is configured to calculate the spatial coordinates, altitude, and deviations.
EFFECT: increased security of helicopter landing is ensured.
2 cl, 2 dwg
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