Scheduled System Maintenance
On Tuesday, September 26, IEEE Xplore will undergo scheduled maintenance from 1:00-4:00 PM ET.
During this time, there may be intermittent impact on performance. We apologize for any inconvenience.

IEEE Transactions on Geoscience and Remote Sensing

Issue 2 • April 1982

Filter Results

Displaying Results 1 - 20 of 20
  • [Front cover - IEEE Transactions on Geoscience And Remote Sensing]

    Publication Year: 1982
    Request permission for commercial reuse | PDF file iconPDF (802 KB)
    Freely Available from IEEE
  • IEEE Geoscience And Remote Sensing Society

    Publication Year: 1982, Page(s): c2
    Request permission for commercial reuse | PDF file iconPDF (614 KB)
    Freely Available from IEEE
  • Table of contents

    Publication Year: 1982, Page(s): nil1
    Request permission for commercial reuse | PDF file iconPDF (106 KB)
    Freely Available from IEEE
  • Estimation of Atmospheric Species Concentrations from Remote Sensing Data

    Publication Year: 1982, Page(s):142 - 153
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2564 KB)

    A basic problem in the interpretation of atmospheric remote sensing data is to estimate species concentration distributions. Typical remote sensing data involve a field of view that moves across the region and represent integrated species burdens from the ground to the altitude of the instrument. The estimation problem arising from this special measurement configuration is solved based on the part... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Detection of Regional Air Pollution Episodes Utilizing Satellite Digital Data in the Visual Range

    Publication Year: 1982, Page(s):154 - 158
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1616 KB)

    A comparative analysis of satellite digital data in the visual range and ground-based aerosol measurements was carried out for July 21 and 22, 1978, representing a significant pollution episode based on low surface visibility and high sulfate levels. Quantitative information on total aerosol loading derived from the satellite digitized data using an atmospheric radiative transfer model agrees well... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Information Time Scale of Geophysical Records in Maximum Entropy Spectral Analysis

    Publication Year: 1982, Page(s):158 - 161
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2293 KB)

    The length of maximum entropy spectral analysis (MESA) filter M must be such that it contains all, and only, the physical information. A new original, conceptually simple criterion is suggested for estimating M on the basis of intrinsic memory time of the signal that is obtained from the autocovariances ÿt by means of the following quantity: begin{equation*}frac{Sigma_t |phi_t|}{phi_0}.end{equati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Enhancement of Poles in Spectral Analysis

    Publication Year: 1982, Page(s):161 - 168
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2819 KB)

    This paper presents a new technique for detecting a small pole in the presence of a nearby strong pole. By simultaneously applying the chirp z-transform (CZT) and a recently developed window, the new technique is shown to be able to detect and resolve a small pole. The CZT is efficient since it employs the fast Fourier transform (FFT) to evaluate a convolution. But unlike the FFT which is limited ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digitizing Methods And Errors in Conductivity-Temperature-Depth Systems

    Publication Year: 1982, Page(s):168 - 173
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2731 KB)

    Digitizing is a critical process because loss of resolution or inaccuracy introduced at this point cannot be rectified. It is suggested that conductivity-temperature-depth (CTD) systems ideally should measure these parameters to a precision of at least 150 ppm. Digitizing methods employed in CTD systems are discussed and evaluated. A worst-case error analysis of several CTD systems is presented. I... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of Legendre Transform for Decorrelation of Random Variables

    Publication Year: 1982, Page(s):174 - 177
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2237 KB)

    Karhunen-Loeve (K-L) transform yields a set of uncorrelated random variables from a set of correlated random variables of a data vector. However, K-L transform is computationally not efficient and hence other fast transforms have been investigated for use in their place. Possible use of Legendre transforms in this application has been investigated. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A System Design for a Multispectral Sensor Using Two-Dimensional Solid-State Imaging Arrays

    Publication Year: 1982, Page(s):177 - 179
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2435 KB)

    The architecture of a system for the simultaneous capture of up to four images from solid-state two-dimensional image sensors is described. The system has been developed for remote sensing from light aircraft in the 400-1100-nm wavelength range. Software generation of sensor drive signals is incorporated in the system. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Electromagnetic Interference Fringes Method in Geophysical Prospecting Applications

    Publication Year: 1982, Page(s):180 - 188
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2097 KB)

    The method of electromagnetic interference fringes for the prospecting of conductive subsurfaces inside the earth is reviewed. The fields radiated by an electrically small horizontal loop situated on the earth's surface are derived and expressed in terms of different interfering wave components. The variable distance interference fringes (VDIF) method and the variable frequency interference (VFIF)... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Locating a Buried Magnetic Dipole

    Publication Year: 1982, Page(s):188 - 192
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2154 KB)

    Five measurements of the magnetic-field vector near the surface of the earth are shown to be sufficient to determine the orientation and location of a buried magnetic dipole. A discussion of field experiments which demonstrate the location concept is included. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electric Drill Stem Telemetry

    Publication Year: 1982, Page(s):193 - 197
    Cited by:  Papers (12)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2398 KB)

    Use of the drill stem-earth system for electric down-hole-to- surface telemetry at low frequencies is considered in this article. Estimates of signal attenuation for both the perfectly conducting drill stem and a drill stem with finite conductivity are obtained and compared with previously reported work. It appears that a link of several kilometers length can be operated at frequencies in the hert... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electromagnetic Coupling Between Parallel Lines on a Uniform Earth

    Publication Year: 1982, Page(s):197 - 200
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2005 KB)

    Electromagnetic (EM) coupling between parallel lines on a uniform earth influences the results of induced polarization and electromagnetic surveys This paper presents a simplified analysis which allows a fast calculation of EM coupling in the time domain for the dipole-dipole and Schlumberger arrays. The simplified results are in good agreement with the results of other workers. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • First Comparisons of Rainfall Rates Derived from Radar Differential Reflectivity And Disdrometer Measurements

    Publication Year: 1982, Page(s):201 - 204
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1417 KB)

    A comparison between radar-derived rainfall rates and those obtained from a ground-based disdrometer located at the radar site is presented. The radar measurements were made in the vicinity of Chicago, IL, on August 2, 1978, with the CHILL radar of the Illinois State Water Survey. Three radar-derived profiles of rainfall rate versus distance from the radar were obtained for a single storm in the d... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Recognition of Extended Targets: SAR Images for Level And Hilly Terrain

    Publication Year: 1982, Page(s):205 - 211
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5901 KB)

    An experiment was performed using radar image simulation techniques to determine what a SAR image would look like for a collection of area extensive targets, first with flat underlying terrain and second, in the presence of moderate relief. Although compression, layover, and shadow are well known from the one-dimensional geometry analyses, it has not been previously demonstrated in a pictorial fas... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Radar Scattering from a Diffuse Vegetation Layer over a Smooth Surface

    Publication Year: 1982, Page(s):212 - 216
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2147 KB)

    A simple model is presented for the oblique backscatter and bistatic scatter from a smooth surface overlain by a diffuse layer. Only single scattering in the diffuse layer is taken into account. The model analysis shows that the combination of volume scattering and oblique reflection at the surface may increase appreciably the waves scattering. The scattering strongly depends on the properties of ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Retrieval of Ocean Surface And Atmospheric Parameters from Multichannel Microwave Radiometric Measurements

    Publication Year: 1982, Page(s):217 - 224
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2179 KB)

    This paper discusses the retrieval from Scanning Multichannel Microwave Radiometer (SMMR) data of ocean surface temperature, surface wind speed, rain rate, cloud height, and the amount of water vapor and nonprecipitating liquid water over the ocean. The sensitivity of the algorithms that retrieve the wind speed and seasurface temperature in the absence of rain to the (undetected) presence of rain,... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Information for authors

    Publication Year: 1982, Page(s): 224a
    Request permission for commercial reuse | PDF file iconPDF (658 KB)
    Freely Available from IEEE
  • Institutional listings

    Publication Year: 1982, Page(s): 224b
    Request permission for commercial reuse | PDF file iconPDF (450 KB)
    Freely Available from IEEE

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