A new concept of radar altimeter

摘要

The concept of Delay/Doppler Radar Altimeter (DDA) was proposed by R.K Raney to improve the spatial resolution in the along-track direction, for rougher surfaces more irregular than open oceans. DDA also has many new advantages when it is used for open oceans, such as stronger response, being less sensitive to off-nadir angle errors, and being more sensitive to significant wave height (SWH) than Conventional Radar Altimeters (CRA). These new features and advantages will be validated by simulations in this paper.