Communications: directive radio wave systems and devices (e.g. – With particular circuit – With recording
Reexamination Certificate
2009-08-27
2011-11-22
Gregory, Bernarr (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
With recording
C342S175000, C342S176000, C342S179000, C342S190000, C342S195000
Reexamination Certificate
active
08063817
ABSTRACT:
Methods and apparatus for enhancing the resolution of a radar image in the cross-range direction. An example method includes receiving a plurality of received power samples in the cross-range dimension as the radar antenna scans and calculating a window function from the antenna beam response pattern. Then for each of a plurality of positions of the window function along the azimuth axis, multiplying the received response pattern by the window function at that position, yielding a product function for each position. Finally, the method includes calculating an estimated azimuth bin offset, resulting estimated target location, and a reflected power value corresponding to the integral of the product function from the product function of each position. A reconstructed azimuth bin array developed from the estimated target locations and reflected power values is substituted for the original received cross-range received power values, yielding a resolution-enhanced map image.
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Gregory Bernarr
Honeywell International , Inc.
Lowe Graham & Jones PLLC
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