ACTIVE POLARIMETRIC MICROWAVE REMOTE-SENSING OF CORN AND MULTIPARAMETRIC RETRIEVAL OF CORN PARAMETERS WITH AN ARTIFICIAL NEURAL-NETWORK

被引：3

作者：

CHEN, ZX

TSANG, L

KUGA, YS

CHAN, C

机构：

[1] Electromagnetics and Remote Sensing Laboratory, Department of Electrical Engineering, University of Washington Seattle, Washington

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 1993年 / 6卷 / 10期

关键词：

REMOTE SENSING; POLARIMETRIC SIGNATURES; NEURAL NETWORK;

D O I：

10.1002/mop.4650061016

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Polarimetric signatures of a corn canopy are studied with the vector radiative transfer theory. Comparisons are made with experimental data at L and C bands. Multiparametric inversions of corn canopy parameters are performed with an artificial neural network (ANN) trained with vector radiative transfer theory. We have performed simultaneous retrieval of three parameters: corn height, volumetric moisture of corn stalks, and volumetric soil moisture from a total of eight averaged Mueller matrix elements at L and C bands and at one incidence angle. It is shown that the performance of the neural network is good, with errors of less than 10%. It is also shown that the performance of the ANN is better if measurements at both frequencies are used and also if polarimetric measurements including information about the polarization phase difference are used. (C) 1993 John Wiley & Sons, Inc.

引用

页码：611 / 615

页数：5

共 10 条

[1]

Tsang L., Kong J.A., Shin R.T., Theory of Microwave Remote Sensing, (1985)

[2]

Polarimetric Remote Sensing, Progress in Electromagnetic Research, 3, (1990)

[3]

Tsang L., Chan C.H., Kong J.A., Joseph J., Polarimetric Signatures of a Canopy of Dielectric Cylinders Based on First and Second Order Vector Radiative Transfer Theory, J. Electromagn. Waves Appl., 1, pp. 19-51, (1992)

[4]

Chen Z., Tsang L., Polarimetric Signatures of a Layer of Nonspherical Discrete Scatterers Overlying a Homogeneous Half‐Space Based on Full Multiple Scattering Vector Radiative Transfer Theory, Microwave Opt. Technol. Lett., 5, pp. 520-524, (1992)

[5]

Tsang L., Chen Z., Oh S., Marks R., Chang A., Inversion of Snow Parameters from Passive Microwave Remote Sensing Measurements by a Neural Network Trained with a Multiple Scattering Model, IEEE Trans. Geosci. Remote Sensing, 30 GRS, 5, pp. 1015-1024, (1992)

[6]

Chen Z., Davis D.T., Tsang L., Hwang J-N., Chang A.T.C., pp. 1061-1063, (1992)

[7]

Cimino J., Dobson M.C., Gates D., Kasischke E., Lang R., Norman J., Paris J., Ulaby F.T., Ustin S., Vanderbilt V., Weber J., (1989)

[8]

MacDonald K.C., (1991)

[9]

Whitt M.W., (1991)

[10]

Parallel Distributed Processing, (1986)

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