ABSTRACT
Doppler principles can either be used in self-
contained navigation systems, or as stand-alone
velocity sensors. An early (1970s) version of a
control display panel used on the MR1 Nimrod
aircraft is illustrated in Figure 15.9. The stand-
alone velocity sensor is in the form of a radar
transmitter-receiver as illustrated in Figure 15.10,
item 1. This sensor has a resolution of less than
0.1 knots and can be interfaced with other avionic
systems and displays using data bus techniques.
