Doppler imaging based on radar target precession

Abstract

Do ppler shift lDduced by target rotation bas been widely studied in tbe literature for Its Imaging potential We investigate bere a unique form of target motion reminiscent of tbe precession of a rotating lop. Images are generated with tbe radar looking either along tbe precession axis or or thogonally to It. Features of tbe two methods are discussed and demonstrated by Imaging slmalated point target scenes.

Frequency-dependent reflectivity image reconstruction

“…This is an example of a known problem with using a continuous wave synthetic aperture for spatial resolution. 3 The problem is associated with the strong side-lobes of the point spread function. One method that can help mitigate this imaging challenge is to use a side-lobe reduction technique such as using multiple carriers for partial side-lobe cancellation.…”

“…One method that can help mitigate this imaging challenge is to use a side-lobe reduction technique such as using multiple carriers for partial side-lobe cancellation. 3 We test the use of multiple carriers using the following carrier frequencies: 0. 1.03 GHz.…”