Communications: directive radio wave systems and devices (e.g. – Radar for meteorological use
Patent
1983-06-28
1988-05-31
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Radar for meteorological use
342175, G01S 1384, G01S 1395
Patent
active
047484489
ABSTRACT:
The invention relates to remote sensing from a satellite of a parameter in one or more regions on the ground adjacent the satellite ground track by radar transmission. The purpose of the invention is to reduce energy consumption and optimize measurement accuracy. A transmitter antenna generates a plurality of pencil radar beams which illuminate respective cells of the region. A control means successively energizes the antenna at respective frequencies for respective pulse durations and for respective number of pulses. The invention is particularly appliable to scatterometer apparatus for responding to wind speed and direction by sensing radar backscatter from sea.
REFERENCES:
patent: 4509048 (1985-04-01), Jain
Radar Handbook, Merrill I. Skolnik, McGraw Hill, 1970, Chapter 32, pp. 17-26.
Introduction to Radar Systems, Skolnik, Merrill I, 1980, pp. 298-305, McGraw Hill.
Grantham et al. "The Seasat-A Satellite Scatterometer", Apr. 1977, IEEE Journal of Oceanic Engineering, vol. OE-2, No. 2, pp. 201-206.
Tomiyasu K. "Conceptual Performance of a Satellite Borne, Wide Swath Synthetic Aperture Radar" IEEE (Apr. 1981) vol. GE-19, No. 2, pp. 108-116.
Agence Spatiale Europeenne
Hellner Mark
Tarcza Thomas H.
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