Means based on the reflection of waves generated by the vehicle (using passive navigation aids external to the vehicle G05D1/244; using signals provided by artificial sources external to the vehicle G05D1/247)

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

Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots (drive control systems specially adapted for autonomous road vehicles B60W60/00) > Control system inputs > Arrangements for determining position or orientation > Means based on the reflection of waves generated by the vehicle (using passive navigation aids external to the vehicle G05D1/244; using signals provided by artificial sources external to the vehicle G05D1/247)