radar **
microwave radar
radio detection and ranging
radiolocation

The main satellite would have also carried a microwave radar to probe beneath the lunar surface up to a depth of a few hundred meters.

A motion sensor which uses low-power microwave radar for the same effect.

Bell also worked on their own microwave radar as a backup project.

This, the first microwave radar built in America, was tested successfully in an aircraft on March 27, 1941.

The only way to "fix" this problem was to move to a microwave radar of their own, an effort that started after the Tizard Mission.

The smart pursuit cars were leading the way, sniffing out the road with microwave radar.

During the war, large scale research at the RadLab was devoted to the rapid development of microwave radar.

He was able to persuade the scientists to establish a group to investigate microwave radar, but without official sanction it had low priority.

It sparked the whole development of microwave radar and constituted the most important item in reverse Lease-lend.

Although the hot lightning channel is briefly observable with microwave radar, no practical use for this mode has been found in communications.