Backscatter coefficient execution and analysis over the temporal radar double polarization signal (VV and HH) for wheat crop monitoring

Wheat Crops monitoring, is an important task that many researchers as well as RS researchers have been focused on and several algorithms have been introduced and applied in this field. Radar signals processing and analyzing in different wavelengths and polarizations for indicator extraction is a technique to monitoring this importance agricultural product. Out of several researchers which are deal with this task, a few Iranian was attending and none published research can found to exit in this field. The present study is deal with backscatter coefficient execution from temporal ASAR C band double polarization data for wheat mentoring in part of North-East Iran namely Shirvan-Faroj Plane. The research outcome was shown acceptable capability of backscatter coefficient in both polarizations for wheat monitoring in an area such as study area. The detailed of research result was shown that compare between HH and VV polarization, the lack of signal sensitivity in HH polarization for soil moisture can provide a better result. Furthermore, conform uncorrelated between backscatter coefficient and plant growing in HH polarization over the rainfed wheat has been observed in this research. This is mainly because of signal penetration and backscatter reducing due to low density and fine texture of rainfed wheat compare to irrigate. It is also observed that backscatter coefficient was increases until the plants reach to heading stage, but it is decreases after this stage due to plant daring.