Means based on the reflection of waves generated by the vehicle

Full Title

Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots > Control system inputs > Arrangements for determining position or orientation > Means based on the reflection of waves generated by the vehicle

Classification Context

Section:

PHYSICS

Class:

CONTROLLING; REGULATING

Subclass:

SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES