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Nearfield Detection of a Crossing Target in Clutter
NAVAL RESEARCH LAB WASHINGTON DC
Pagination or Media Count:
The detection of a crossing target in the nearfield in Gaussian clutter is explored. The relative phase shifts across antenna elements are nonlinear functions of the geometry and change through time. Consequently, crossing targets in the nearfield exhibit a changing phase called spatial Doppler and can be separated from the highly correlated clutter. By using two examples, the signal-to-noise ration is shown to be significantly enhanced for the crossing target in clutter.
APPROVED FOR PUBLIC RELEASE