DRFM can also be used to create distorted phase-fronts at the victim receive antenna which is essential for countering monopulse radar angular measurement techniques.
12.
Frequencies were compared within a single pulse ( a monopulse radar ), so the high frequency stability over longer multi-pulse times was not required.
13.
Located at the Zeus bases would be the Local Acquisition Radar ( LAR ), a UHF monopulse radar able to track between 50 and 100 targets.
14.
The aircraft's principal sensor was an Ericsson PS 37 X-band monopulse radar, which used a mechanically steered parabolic dish housed in a radome.
15.
The NRL's work on monopulse radars eventually led to the AN / FPS-16, developed jointly by NRL and RCA as the first radar designed especially for missile ranges.
16.
New to the Hercules system was the Target Ranging Radar, or TRR . It is relatively easy to jam range information on monopulse radars like the TTR by sending out false return signals.
17.
In order to comply with the French Air Force's requirement for an all-weather interceptor, the first production "'Mirage F1C "'was equipped with a Thomson-CSF Cyrano IV monopulse radar.
18.
Another major upgrade to the AIM-7 followed, the AIM-7M . The M included a new monopulse radar seeker that allowed it to be shot downward from a higher-altitude aircraft at a target otherwise masked by the ground.
19.
This problem can be solved by using two simultaneous overlapping receiver beams leading to the monopulse radar, so-named because it always compares signal strength from a single pulse against itself, thereby eliminating problems with all but impossibly fast changes in signal strength.
20.
Whereas classical conical scan systems generate pointing accuracy on the order of 0.1 degree, monopulse radars generally improve this by a factor of 10, and advanced tracking radars like the AN / FPS-16 are accurate to 0.006 degrees.
