http://www.jolly-rogers.com/airpower/index.htmlAPG-70 Radar
The APG-70 is based on the F-15C's APG-63 pulse-doppler radar which was optimised for the detection of air targets. The APG-70 retains all of the excellent capabilities of the APG-63 while at the same time featuring additional functions to aid in the precision strike role. The most notable feature of the APG-70 is its ability to produce photo-realistic patch maps of a given area down to the 8.5 foot (2.6 m) resolution. This resolution however can only be attained while within 10 nautical miles of the target. At greater distances the resolution diminishes to a maximum of 127 feet (38.7 m) at 160 nautical miles from the target. The quality of the HRM is also dependent on the "grazing angle" of the radar, the angle at which the radar beam strikes the surface that is to be mapped. The APG-70 has a minimum angle of 0.5 degrees which translates into an altitude of 1,000 feet for every 20 nm from the target. As a result, if the F-15E is performing a low-level ingress, the aircraft must increase altitude temporarily while the radar generates a HRM.
http://home.att.net/~jbaugher1/f15_10.htmlThe heart of the F-15E's electronics suite is the AN/APG-70 radar. It is intended to be used without being detected by an enemy's air defenses. The radar supposedly can be quickly switched on to obtain an single-sweep synthetic aperture radar image of a target area located as much as 45 degrees to either side of the aircraft's flight path, then rapidly switched off seconds later, making it difficult for an enemy to pick up the emissions and track the F-15E's location and flight path. The radar map can be "frozen" on the screen, and updated periodically by new sweeps as the aircraft gets nearer to the target. The radar display terminals process the radar signals received and can provide a bird's eye view of ground targets that are of higher resolution and taken from further away than the images produced by previous radars. Roads, bridges, and airfields can be identified as far as 100 miles away, and as the F-15E nears the target image resolution becomes progressively sharper and smaller targets such as trucks, aircraft, and tanks can be distinguished.
Сканирование по углу места мехaническое:
А электронное - у AN/APG-63(V)2: