Remote monitoring corner reflector system

Abstract

A remote monitoring corner reflector system comprises a corner reflector, standard servo and support equipment, automatic power supply equipment and remote monitoring equipment. The corner reflector is fixed on the standard servo and support equipment by means of a standard mounting base; the standard servo and support equipment is connected with a prefabricated stylobate on the ground by means of a mounting adjustment pedestal at the bottom end of the standard servo and support equipment; the automatic power supply equipment supplies electric energy to the standard servo and support equipment through a cable; and the remote monitoring equipment is the upper computer of the whole system, monitors states of the automatic power supply equipment and the standard servo and support equipment, and sends control commands. The remote monitoring corner reflector system supports the normalized conduction of SAR calibration and quality evaluation tests, and provides a high-precision reference point target for SAR radiation calibration, geometric calibration, polarization calibration, interferometric calibration, SAR system quality evaluation and the like.

Description

technical field [0001] The invention relates to the technical field of remote sensing satellites, and further relates to a remote monitoring corner reflector system. Background technique [0002] SAR (Radiometric calibration of synthetic aperture radar, synthetic aperture radar) calibration relies on known ground targets as a standard reference source to measure the SAR system antenna pattern, total transfer function (calibration constant), polarization calibration and interferometric calibration parameters , in the quality assessment of SAR systems and images, known ground targets are also required as standard reference sources for the analysis and assessment of radiation, geometry, polarization and interferometric accuracy. Commonly used standard reference targets are point targets and distribution targets. Therefore, the methods of SAR calibration and quality assessment are divided into methods based on point targets and methods based on distributed targets. Correspondi...

AI Technical Summary

Problems solved by technology

However, due to the large number of corner reflectors in the field test (generally reaching more than 10, or even more than 30), the workload of azimuth and pitch pointing adjustment is large; , the pointing adjustment accuracy is not high, which affects the calibration accuracy and effect, which affects the success rate of the test to a certain extent, and increases the workload of the test; for the long-term SAR calibration and quality assessment work, it is necessary to have a lot of field workers. When doing the test, it is difficult to adapt to the long-term, high-frequency calibration and quality evaluation test, and it is difficult to adapt to the application requirements of multiple SAR satellites when it is sent to the calibration site for equipment adjustment operations

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