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IEEE Transactions on Geoscience and Remote Sensing

Issue 4 • Date Oct. 1981

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Displaying Results 1 - 18 of 18
  • [Front cover - IEEE Transactions on Geoscience And Remote Sensing]

    Publication Year: 1981, Page(s): c1
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  • IEEE Geoscience And Remote Sensing Society

    Publication Year: 1981, Page(s): c2
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  • Table of contents

    Publication Year: 1981, Page(s): 177
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  • Regression Techniques for Oceanographic Parameter Retrieval Using Space-Borne Microwave Radiometry

    Publication Year: 1981, Page(s):178 - 189
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3896 KB)

    Variations of conventional multiple regression techniques are applied to the problem of remote sensing of oceanographic parameters from space. The techniques are specifically adapted to the scanning multichannel microwave radiometer (SMMR) launched on the Seasat and Nimbus 7 satellites to determine ocean surface temperature, wind speed, and atmospheric water content. The retrievals are studied pri... View full abstract»

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  • Freshwater Ice Thickness Observations Using Passive Microwave Sensors

    Publication Year: 1981, Page(s):189 - 193
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2960 KB)

    Walden Reservoir, a freshwater lake in north-central Colorado, was overflown six times by a NASA C-130 aircraft between January 1977 and April 1980. The aircraft was equipped with four microwave radiometers operating between 0.81 and 6.0 cm in wavelength (37.0 to 5.0 GHz). The 6.0-cm radiometer data showed a good relationship (R2 = 0.98) with ice thickness based on a sample of four ice thickness v... View full abstract»

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  • Direct Determination of the Two-Dimensional Image Spectrum from Raw Synthetic Aperture Radar Data

    Publication Year: 1981, Page(s):194 - 203
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2355 KB)

    This paper describes an algorithm which computes two-dimensional Fourier transform of a synthetic aperture radar (SAR) image. This method is intended to replace the whole SAR processing and the two-dimensional Fourier transformation by a specialized processing scheme which, in terms of computational speed and complexity, will be of the order of a single two-dimensional autocorrelation. This proces... View full abstract»

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  • HF Radio Wave Transmission over Sea Ice And Remote Sensing Possibilities

    Publication Year: 1981, Page(s):204 - 209
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1894 KB)

    Ground wave propagation is analyzed for a path where sea water is covered by a uniform layer of sea ice. The source is taken to be a vertical electric dipole on or above the ice layer. The solution indicates that a trapped surface wave is significant at short ranges while, at longer ranges, the usual ground wave modes are dominant. The resulting interference pattern may produce rapid variations of... View full abstract»

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  • HF Ground Wave Propagation over Mixed Land, Sea, And Sea-Ice Paths

    Publication Year: 1981, Page(s):210 - 216
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1088 KB)

    Ground wave propagation is analyzed for a two-section path on a spherical earth. Each section can be a two-layer medium which is characterized by a surface impedance. Specific calculations for a land-to-sea path indicate that the well-known recovery effect in amplitude and phase is more extreme at higher frequencies but is reduced for elevated observer heights. Calculations for a sea-to-sea ice pa... View full abstract»

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  • A Fast Optimal Deconvolution Algorithm for Real Seismic Data Using Kalman Predictor Model

    Publication Year: 1981, Page(s):216 - 221
    Cited by:  Papers (10)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3261 KB)

    The paper is concerned with an application of a recently proposed algorithm for minimal realization of stochastic dynamic systems to the problem of deconvolution of reflection seismograms. Results of real data processing are presented in order to establish the advantages of this algorithm in terms of computational requirements and accuracy of signal estimation vis-à-vis the widely accepted algori... View full abstract»

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  • Application of Prediction Error Filters for the Detection of Weak Teleseismic Events

    Publication Year: 1981, Page(s):222 - 230
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1887 KB)

    This paper analyzes how the signal-to-noise ratio (SNR) for digital registrations of weak earthquakes can be enhanced by application of prediction error filters. Two prediction algorithms are considered: A linear prediction filter and an adaptive autoregressive moving average (ARMA) filter. The effects of the filter parameters on the noise suppression rate and on the quality of spectral approximat... View full abstract»

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  • Towards a General Theory of Induced Electrical Polarization in Geophysical Exploration

    Publication Year: 1981, Page(s):231 - 234
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    We exploit the concept that the resistivity of earth materials is a complex frequency-dependent quantity. We then present a general macroscopic formulation for the voltage response at two ¿potential¿ electrodes when a current is suddenly applied to two additional electrodes. It is indicated, in a general way, how the transient and the frequency domain results are related. Using a function approa... View full abstract»

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  • Quasi-Static Magnetic-Field Technique for Determining Position And Orientation

    Publication Year: 1981, Page(s):235 - 243
    Cited by:  Papers (11)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2103 KB)

    Multiaxis generation and sensing of magnetic-dipole fields is used to determine both position and orientation. The effect of conducting ground upon the fields is kept to an acceptably low level by using extremely low-frequency source-excitation signals. This technique can therefore be used in through-the-earth position-finding for applications such as drill guidance and mine rescue. The theory of ... View full abstract»

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  • Miniature Interferometer Terminals for Earth Surveying: Ambiguity And Multipath with Global Positioning System

    Publication Year: 1981, Page(s):244 - 252
    Cited by:  Papers (78)  |  Patents (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2086 KB)

    With the recent launching of several satellites of the global positioning system (GPS), a variety of schemes based on radio interferometry have been proposed for the accurate determination of relative positions of receiving terminals on the ground. Provided that the integer-cycle ambiguities of the interferometric phase observations can be correctly resolved, the baseline vector extending from the... View full abstract»

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  • Editorial Board for 1980

    Publication Year: 1981, Page(s): 253
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  • Author index

    Publication Year: 1981, Page(s):253a - 253b
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  • Subject index

    Publication Year: 1981, Page(s):253b - 253e
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  • Information for authors

    Publication Year: 1981, Page(s): 253f
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  • Institutional listings

    Publication Year: 1981, Page(s): 253g
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Aims & Scope

 

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING (TGRS) is a monthly publication that focuses on the theory, concepts, and techniques of science and engineering as applied to sensing the land, oceans, atmosphere, and space; and the processing, interpretation, and dissemination of this information.

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Antonio J. Plaza
University of Extremadura