G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 7/41 (2006.01) G01S 3/04 (2006.01) G01S 7/02 (2006.01) G01S 7/03 (2006.01)
Patent
CA 2168196
This invention relates to a method and apparatus by means of which a coarse estimate of radar signal polarisation can be obtained. An array comprises at least three differently directed detectors. The polarisation is estimated by measuring an amplitude relationship, such as a ratio of amplitudes, for two adjacent detectors and for two non-adjacent detectors. This provides sufficient information to obtain a coarse estimate of the polarisation state, obtainable by using the value of the amplitude relationship for the two adjacent detectors together with a look-up table to estimate values of the amplitude relationship for the two non- adjacent detectors for different polarisation states, and then comparing the measured and estimated values for this amplitude relationship.
Racal Radar Defence Systems Limited
Ridout & Maybee Llp
LandOfFree
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