Josaphat Tetuko Sri Sumantyo
Abstract
The keynote speak will introduce from A to Z related to how to develop, test, and operate the unmanned aerial vehicle (UAV), aircraft, and microsatellite onboard circularly polarized synthetic aperture radar (SAR) for agricultural monitoring, especially smart agriculture. Firstly, the webinar will explain the theory of scattering circular polarization and scattering test in an anechoic chamber using an aircraft model and paddy phenology; then an explanation in detail related to how to calculate the radar equation to determine the parameter of the radio-frequency (RF) system and antennas; the development and know-how of the in-door and out-door tests of the hardware of RF system of the SAR system; the installation and attention of the SAR system in the aircraft for flight test; the ground test using corner reflectors to investigate the performance of SAR system and validation-calibration of the polarimetric SAR using a multi-polarized single pulse scattering; and flight test of circularly polarized SAR in the Hinotori-C2 mission onboard CN235MPA aircraft with multipath to collect the full polarimetric circularly polarized images. At the end of the presentation, the various example of circularly polarized SAR images and future research using the hybrid UAVs for long-flight observation will be introduced.