Two-port synthetic aperature radar system for radar detection of

Details Two-port synthetic aperature radar system for radar detection of Two-port synthetic aperature radar system for radar detection of

1985-08-16

1996-10-08

Gregory, Bernarr E.

Communications: directive radio wave systems and devices (e.g.,

Synthetic aperture radar

342 28, 342113, 342115, 342159, G01S 1390

Patent

active

055636012

ABSTRACT:
Doppler signals from a two-port radar system are spectrally processed and searched for a pattern of points wherein clutter at a first instant of time is subsequently replaced by low-level returns indicating the movement of a target. The rate of change of the low-level signals, along the same range bin but different Doppler bins, is indicative of target azimuth position relative to the boresight of the radar antenna. The difference between the total Doppler detected from the target and the Doppler for the azimuth position of the black hole detection is the Doppler for the relative radial velocity of the target. Not only is the black hole and shadow (lack of detection) detectable but more measurable and detectable is the clutter signal difference with the target motion.

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