A Signal Matching Method of In-Orbit Calibration of Altimeter in Tracking Mode Based on Transponder
Qingyu Fang,
Wei Guo,
Caiyun Wang
et al.
Abstract:In this paper, a matching method for altimeter and transponder signals in Sub-optimal Maximum Likelihood Estimate (SMLE) tracking mode is proposed. In the in-orbit calibration of the altimeter in SMLE tracking mode using the reconstructive transponder, it is necessary to separate the forwarding signal from the ground echo signal. At the same time, the fluctuations in the received signal of the altimeter, which are caused by the forwarding signal of the transponder, can be eliminated. The transponder generates … Show more
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