The unique characteristics of bistatic radar operation on the performance of airborne/spaceborne moving target indicator (MTI) radars that use space-time adaptive processing (STAP) are discussed. It has been shown that monostatic STAP radar has the following properties. 1) For a horizontal flight path and a planar Earth the curves of constant clutter Doppler (isodops) are hyperbolas. 2) For a sidelooking antenna geometry the clutter Doppler is range independent. 3) Clutter trajectories in the cos/spl phi/-F plane (F=normalized Doppler) are in general ellipses (or straight lines for a sidelooking array). We demonstrate that these well-known properties are distorted by the displacement between transmitter and receiver in a bistatic configuration. It is shown that even for the sidelooking array geometry the clutter Doppler is range-dependent which requires adaptation of the STAP processor for each individual range gate. Conclusions for the design of STAP processors are drawn.
Comparison between monostatic and bistatic antenna configurations for STAP
IEEE Transactions on Aerospace and Electronic Systems ; 36 , 2 ; 596-608
2000-04-01
1217775 byte
Article (Journal)
Electronic Resource
English
Comparison Between Monostatic and Bistatic Antenna Configurations for STAP
Online Contents | 2000
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