“…First of all, the preparation of receiver, the receiving and processing of the signals should be paid more attention to considering that the reflection signals are always weak. [12][13][14] (http://starlab.es/Sections/Library.html). In the aspect of retrieval, different groups applied their methods to calculating SWH, SSH, wind speed and direction with measurements from ground-based, airborne or space experiments [11,15,16] .…”