Application of MW delay lines in combined SAR calibration
DOI:
https://doi.org/10.1109/ICATT.1999.1236284Abstract
This paper gives a description of the facilities for the combined calibration of the L- and VHF-band radars (λ ≈ 23 cm, SAR-23 and λ ≈ 180 cm, SAR-180, respectively) installed in the air-borne "MARS" system [1] where the MW delay lines are employed. The technique for the combined SAR calibration involves a periodic external calibration of point calibrated reflectors (transponders) being mounted close to the surfaces under study or on special testing sites as well as continuous internal calibration with indispensable recording of real carrier flight parameters [2].References
Kalmykov, A.I.; Tsymbal, V.N.; Kurekin, A.S.; Yefimov, V.B.; Matveyev, A.Ya.; Gavrilenko, A.S.; Igolkin, V.V. The Multipurpose Airborne Radar System of the Earth's Remote Sensing “MARS”. Radiophysics and Radioastronomy, 1998, Vol. 3, No. 2, p. 119-129.
Matveev, A.Ya.; Tsymbal, V.N.; Gavrilenko, A.S.; et al. Peculiarities of the Calibration Methods for Air- and Spaceborne Synthetic Aperture Radar Systems. Proc. of European Conf. on Syntheric Aperture Radar, EUSAR'96, 26-28 March 1996, Königswinter, Germany. Berlin, Offenbach: VDE, VERLAG GMBH, 1996, pp. 511-514.
Freeman, A. SAR Calibration: An Overview. IEEE Trans. Geoscience and Remote Sensing, 1992, Vol. 30, No. 6, p. 1107-1121.
Published
1999-09-14
Issue
Section
Microwave components and circuits, fiber-optic links
