A delay/Doppler-mapping receiver system for GPS-reflection remote sensing

Inferring Snow Water Equivalent for a Snow-Covered Ground Reflector Using GPS Multipath Signals

“…Recently, it has been reported that reflected GPS signals can provide useful information about the land-surface composition such as snow depth, lake ice thickness, soil moisture, ground electrical characteristics, or sea ice conditions [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. The possibility of estimating dry snow density with the GPS L1 frequency was first mentioned by Jacobson [5].…”

First China ocean reflection experiment using coastal GNSS-R

“…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] .…”

Development and testing of the GISMOS instrument

“…These measurements can be used to produce estimates of soil moisture [5] and ocean winds [6] [7], respectively. Previous airborne GNSS-R instruments are described in [8] and [9] and a satellite demonstration is described in [10]. A description of the GISMOS instrument system will be provided first.…”