System techniques and capabilities of the HY-2A altimeter
Ke Xu, Heguang Liu, Peng Liu, Xiufen Yu
Abstract
Ke Xu, Heguang Liu, Peng Liu, Xiufen Yu
Abstract
HY-2A, the China's first satellite for oceanic dynamic environment measurement, was launched on August 16th, 2011. As one of main payloads of HY-2A satellite, HY-2A radar altimeter is a dual-frequency (Ku and C band) altimeter with a conventional pulse-limited method. The altimeter can measure sea surface height, significant wave height, and sea surface wind speed. The accuracy of the altimeter is about 2cm (@4m SWH) or 4cm (@20m SWH). The system techniques and capabilities of the HY-2A altimeter are discussed in this paper.
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HY-2A, the China's first satellite for oceanic dynamic environment measurement, was launched on August 16th, 2011. As one of main payloads of HY-2A satellite, HY-2A radar altimeter is a dual-frequency (Ku and C band) altimeter with a conventional pulse-limited method. The altimeter can measure sea surface height, significant wave height, and sea surface wind speed. The accuracy of the altimeter is about 2cm (@4m SWH) or 4cm (@20m SWH). The system techniques and capabilities of the HY-2A altimeter are discussed in this paper.
Key concepts: Altimeter, Radar altimeter, Remote sensing, Significant wave height, Satellite, Ku band, Wind wave, Space-based radar