Method of designing transmission power in synthetic aperture rad

Details Method of designing transmission power in synthetic aperture rad Method of designing transmission power in synthetic aperture rad

1995-03-09

1996-08-20

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Synthetic aperture radar

G01S 1390

Patent

active

055482902

ABSTRACT:
In a method of designing the transmission power of a synthetic aperture radar installed on a flight object such as an artificial satellite, the transmission power is designed such that, in applying radar equation P.sub.r =P.sub.t .multidot..sigma..multidot.A.sub.p.sup.2 /(4.pi..lambda..sup.2 R.sup.4) [P.sub.t :transmission power (W), .sigma.: radar scattering cross section (m.sup.2), A.sub.p :antenna area (m.sup.2), R: distance to the object to be observed (m), .lambda.: wavelength of radio wave (m)] for setting transmission power P.sub.r so as to satisfy the conditions required for the radar, the radar scattering cross section .sigma. is set to .sigma.=.sigma..sup.0 .multidot.S.sup.2 .multidot.4.pi./ .lambda..sup.2 [.sigma..sup.0 :scattering coefficient, S:area of irradiated domain (m.sup.2)].

REFERENCES:
IGARSS' 94 International Geoscience and Remote Sensing Symposium, vol. 1, Aug. 1994, California Institute of Technology Pasadena California US pp. 298-300. R. Keith Raney et al 'Comments on SAR signal and noise equations' *the whole document*.
Proceedings of the IEEE, vol. 79, No. 6, Jun. 1991, New York US pp. 800-809. Yoshiaki Nemoto et al 'Japanese earth resources satellite-1 synthetic aperture radar'. *the whole document*.

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