Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system – By monitoring
Reexamination Certificate
2007-09-22
2010-02-23
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
By monitoring
C342S165000, C342S173000
Reexamination Certificate
active
07667639
ABSTRACT:
Taught herein is a passive channel calibration method wherein a non-linear antenna array sets an antenna array to a non-linear formation that contains at least a combination of translation invariant dual array-element couples, detects single-azimuth ocean echoes via combinations of translation invariant dual array-element couples, estimates channel amplitude mismatch coefficients via the single-azimuth ocean echoes to implement amplitude calibration, and estimates channel phase mismatch coefficients via the single-azimuth ocean echoes after amplitude calibration and the known array position information to implement phase calibration.
REFERENCES:
patent: 5361072 (1994-11-01), Barrick et al.
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Least-squares methods for the extraction of surface currents from CODAR crossed-loop data: Application at Arsloe Lipa, B. Barrick, D. Ocean Surface es. Inc., Woodside, CA, USA;This paper appears in: Oceanic Engineering, IEEE Journal of Publication Date: Oct. 1983 vol. 8, Issue: 4 On pp. 226-253.
Extraction of sea state from HF radar sea echo: mathematical theory and modeling Lipa, Barrick, Radio Science, Wol 21 No. 1, pp. 81-100 Jan.-Feb. 1986.
Cheng Feng
Wu Xiongbin
Bythrow Peter M
Matthias Scholl P.C.
Scholl Matthias
Tarcza Thomas H
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