Abstract:The traditional waveform retracking method cannot effectively process the noise of echo waveform of satellite altimeters in coastal areas, so we propose a new method of Jason-3 altimeter echo waveform retracking based on singular spectrum analysis to further improve the quality of waveform retracking data. Using singular spectrum analysis method, we filter the noise of echo waveform and extract the main waveform information. Then we carry out the waveform retracking processing. We retrack the raw waveform and filtered waveform, and compare and analyze the retracked sea surface height. The results show that the retracking method of Jason-3 altimeter echo waveform based on singular spectrum analysis is effective and reliable, which has a certain reference significance for further expanding the application of satellite altimetry technology in coastal areas.