Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Zongqian Li"'
Autor:
Lu Tang1, Shufei Wang2, HongYan Deng3, ZongQian Li4, XuHai Wang5 nihaomeimei111888@zoho.com.cn
Publikováno v:
Fresenius Environmental Bulletin. Jul2021, Vol. 30 Issue 7, p8034-8040. 7p.
Autor:
Zongqian Li, Kongyu Feng
Publikováno v:
Science in China Series E: Technological Sciences. 40:317-323
An inverse method of dielectric constant and moisture of bare wet soil surface from backscattering coefficients is presented, which is based upon the small perturbation model of electromagnetic wave scattering from rough surfaces and the empirical an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b80f0e8936f42d733c6e3f3f4c7fea1c
https://doi.org/10.1007/bf02916607
https://doi.org/10.1007/bf02916607
Publikováno v:
ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004..
By solving the Riccati equation, reflection coefficient and transmission coefficient of inhomogeneous moisture profile are obtained in this paper, substituting them for the corresponding coefficients of homogeneous profile in BSM, the range of BSM is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad9c6e9a4b7a5527da82d437818599db
https://doi.org/10.1109/icmmt.2004.1411686
https://doi.org/10.1109/icmmt.2004.1411686
Publikováno v:
2002 3rd International Conference on Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002..
The principles and characteristics of a new scattering model named as bi-spectrum model (BSM) is introduced briefly in this paper. Using BSM to calculate the scattering coefficient, emissivity is calculated under different situations by using the sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d3b0cfbf834965bd323765c2f20ac11
https://doi.org/10.1109/icmmt.2002.1187847
https://doi.org/10.1109/icmmt.2002.1187847
Publikováno v:
Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings..
In active microwave remote sensing of soil moisture, the electric field scattered by the soil surface contains information about the soil. Three kinds of a priori knowledge hypotheses are considered for their influence on soil moisture inversion. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6458e7e839fa90b32144b2fb3052d85
https://doi.org/10.1109/ceem.2003.238342
https://doi.org/10.1109/ceem.2003.238342
Publikováno v:
2000 5th International Symposium on Antennas, Propagation, and EM Theory. ISAPE 2000 (IEEE Cat. No.00EX417).
An inversion method based upon a neural network is applied to retrieve the soil moisture and roughness parameters from the radar backscattering coefficients. The structure and the training algorithm of the neural network (NN) are presented in the pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15fe02c1f7cc9bacef076a0b95ffdbd9
https://doi.org/10.1109/isape.2000.894808
https://doi.org/10.1109/isape.2000.894808
Publikováno v:
2000 5th International Symposium on Antennas, Propagation, and EM Theory. ISAPE 2000 (IEEE Cat. No.00EX417).
The validity of the Kirchhoff approximation and IEM model for rough perfect conducting surface scattering is examined by comparison with simulation results obtained by solving integral equations. First, the surface current and scattered field of appr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3f46a3fd1bfbacc651fd1af88a0e99d
https://doi.org/10.1109/isape.2000.894805
https://doi.org/10.1109/isape.2000.894805
Autor:
Zongqian Li, Yuhua Tu
Publikováno v:
SPIE Proceedings.
This paper presented an inverse method of moisture and roughness of wet soil ,which is based upon the small perturbationscattering model, the Kirchhoff model, integral equation model and the model of wet soil. Analysis and inversion examplesshow that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec838e6c3de370a74ba8e1089a1456c0
https://doi.org/10.1117/12.319476
https://doi.org/10.1117/12.319476
Publikováno v:
ICMMT 4th International Conference on, Proceedings Microwave & Millimeter Wave Technology, 2004; 2004, p940-944, 5p
Publikováno v:
Proceedings of the Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003; 2003, p499-502, 4p