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This paper investigates the S-band backscattering variation of wheat in its four growing seasons, with the purpose of providing a reliable method for wheat identification and monitoring using satellite S-band synthetic aperture radar (SAR) data. The study is based on the tower-based scatteromerer experiment conducted on the wheat fields at the remote sensing test site of Institute of remote sensing...
Synthetic Aperture Radar (SAR) has the penetration of the drying dielectric layer, which can detect subsurface targets and buried characteristics. It took fully polarimetric SAR datasets of the subsurface in Lop Nur Palaeo-lacustrine basin for example to compute Shannon entropy parameter and analyze its image features, and then compare those with the other polarization parameters and polarization...
Microwave remote sensing data comprehension for typical targets forms the basis of microwave remote sensing applications. Ideas and approaches of microwave scattering database construction for typical targets (such as soil, crop, forest, water, urban area, etc.) from demand analysis, system design, database design and analysis of key issues are introduced in detail. This database can store and manage...
The objective of this work is the design of simple spectrum analyzer. The microcontroller is the control center of the system, which is achieved DDS, FFT and Frequency Counter by the FPGA chip. And expansion of the AM modulated wave signal source output, expand the output dynamic range and the analysis and shows of spectrum band and so on. Signal output frequency can be up to 5MHz, adjustable amplitude...
The existence of solutes and their redistribution during freezing have a deep influence on the process of soil freezing. We performed unidirectional freezing experiments in an open system with red clay collected at the Beiluhe test site along the Qinghai–Tibet Railway. The groundwater supply of the soil was simulated in the laboratory experiment by attaching a liquid replenishment system to the bottom...
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