# IEEE Geoscience and Remote Sensing Letters

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Displaying Results 1 - 25 of 46
• ### [Front cover]

Publication Year: 2011, Page(s): C1
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• ### IEEE Geoscience and Remote Sensing Letters publication information

Publication Year: 2011, Page(s): C2
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Publication Year: 2011, Page(s):189 - 190
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• ### Approaches for Compression of Super-Resolution WSR-88D Data

Publication Year: 2011, Page(s):191 - 195
Cited by:  Patents (1)
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Weather radar products from the U.S. National Weather Service (NWS) are used by the government and private sectors. Very high resolution radar data are increasingly being utilized in real time. However, the bandwidth needed to transmit these data (termed level-II super-resolution data) from the radar to the destination site is a limiting issue. General-purpose compression programs are not tuned to... View full abstract»

• ### Rice Crop Monitoring in South China With RADARSAT-2 Quad-Polarization SAR Data

Publication Year: 2011, Page(s):196 - 200
Cited by:  Papers (31)
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This letter presents preliminary results of an attempt to monitor rice crop growth using RADARSAT-2 quad polarization synthetic aperture radar (SAR) data. Three RADARSAT-2 quad-polarization SAR images are collected from transplanting to rice crop harvesting. Ground truth data, such as rice height and biomass, are measured during RADARSAT-2 data acquisition in Hainan Province, South China. The corr... View full abstract»

• ### Through-Wall Shape Reconstruction and Wall Parameters Estimation Using Differential Evolution

Publication Year: 2011, Page(s):201 - 205
Cited by:  Papers (18)
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In this letter, the ability of differential evolution (DE) stochastic searching algorithm in front shape reconstruction of 2-D conducting targets hidden behind a homogeneous building wall is shown using simulated backscattered fields, calculated at different frequency and observation points. The target shapes are approximated by the cubic B-spline curves and the targets' equivalent surface current... View full abstract»

• ### Diurnal Cycle Induced Amplification of Sea Surface Temperature Intraseasonal Oscillations Over the Bay of Bengal in Summer Monsoon Season

Publication Year: 2011, Page(s):206 - 210
Cited by:  Papers (14)
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In spite of strong mean summer monsoon winds, the magnitudes of diurnal and intraseasonal oscillations (ISO) of the sea surface temperature (SST) in the Bay of Bengal (BoB) are as strong as the respective magnitudes in the western Pacific. Using continuous observations during the peak summer monsoon of 1998 at BoB buoy (DS4) located at (89° E, 19° N), we show that the strong near-sur... View full abstract»

• ### An Interpolated Phase Adjustment by Contrast Enhancement Algorithm for SAR

Publication Year: 2011, Page(s):211 - 215
Cited by:  Papers (9)
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Phase adjustment by contrast enhancement (PACE) is an autofocus algorithm that is capable of performance that is unattainable by conventional techniques. It is a nonparametric method that requires no constraints on the type of phase error to be measured. The algorithm does not require special data culling techniques or the presence of isolated scatterers. However, the drawback of PACE algorithm is... View full abstract»

• ### Extrapolation of Sequence of Geostationary Satellite Images for Weather Nowcasting

Publication Year: 2011, Page(s):216 - 219
Cited by:  Papers (2)
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In this letter, a novel scheme for image sequence extrapolation is proposed and demonstrated, particularly for the purpose of near-real-time weather nowcasting during satellite launches. The highlight of this model is its ability to produce a sequence of simulated satellite images extended in time scale, which is very important for forecasting the evolution of a meteorological system. For this, th... View full abstract»

• ### Hyperspectral Image Classification Using Denoising of Intrinsic Mode Functions

Publication Year: 2011, Page(s):220 - 224
Cited by:  Papers (12)
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This letter proposes the use of denoising in conjunction with 2-D empirical mode decomposition (2D-EMD) of hyperspectral image bands for higher classification accuracy. Initially, 2D-EMD is performed to hyperspectral image bands for decomposition into intrinsic mode functions (IMFs). Then, denoising is applied to the first IMF of each band because this IMF includes local high-spatial-frequency com... View full abstract»

• ### Multilevel Local Pattern Histogram for SAR Image Classification

Publication Year: 2011, Page(s):225 - 229
Cited by:  Papers (22)
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In this letter, we propose a theoretically and computationally simple feature for synthetic aperture radar (SAR) image classification, the multilevel local pattern histogram (MLPH). The MLPH describes the size distributions of bright, dark, and homogenous patterns appearing in a moving window at various contrasts; these patterns are the elementary properties of SAR image texture. The MLPH is a ver... View full abstract»

• ### Recharacterization of the Microwave Sounding Unit Cross-Track Asymmetry During a Spacecraft Tumble

Publication Year: 2011, Page(s):230 - 232
Cited by:  Papers (1)
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In August 2006, a pitch-over maneuver was performed on NOAA-14 in order to characterize the asymmetry in the Microwave Sounding Unit. Approximately seven weeks later, the spacecraft tumbled when a hydrazine thruster leaked. This tumble permitted a second characterization of the asymmetry. The analysis of the data collected during the tumble event revealed that, while three of the four channels had... View full abstract»

• ### Estimation of the Discrete Spectrum of Relaxations for Electromagnetic Induction Responses Using $ell_{p}$-Regularized Least Squares for $0 leq p leq 1$

Publication Year: 2011, Page(s):233 - 237
Cited by:  Papers (8)
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The electromagnetic induction response of a target can be accurately modeled by a sum of real exponentials. However, in practice, it is difficult to obtain the model parameters from measurements. We previously proposed a constrained linear method that can robustly estimate the model parameters when they are nonnegative. In this letter, we present a modified ℓp-regularized least s... View full abstract»

• ### On the Generation of Late ERS Deformation Time Series Through Small Doppler and Baseline Subsets Differential SAR Interferograms

Publication Year: 2011, Page(s):238 - 242
Cited by:  Papers (3)
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In this letter, we investigate the potential of the small baseline subset (SBAS) differential synthetic aperture radar interferometry (DInSAR) technique to produce consistent deformation time series by using data sets of SAR images with high Doppler centroid (DC) frequencies. To cope with this issue properly, we exploited an archive of SAR scenes acquired by the European Remote Sensing 2 (ERS-2) s... View full abstract»

• ### Efficient Electromagnetic Imaging of an Artificial Infiltration Process in the Vadose Zone Using Cross-Borehole Radar

Publication Year: 2011, Page(s):243 - 247
Cited by:  Papers (6)
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Cross-borehole ground-penetrating radar (GPR) has been widely used to characterize the shallow subsurface and to monitor hydrogeologic processes. To investigate an infiltration process in the vadose zone, an artificial groundwater infiltration test was conducted in Nagaoka, Japan. Time-lapse cross-borehole GPR data were collected using zero-offset profiling (ZOP) mode. The infiltration process was... View full abstract»

• ### Volcanic Ash Cloud Properties: Comparison Between MODIS Satellite Retrievals and FALL3D Transport Model

Publication Year: 2011, Page(s):248 - 252
Cited by:  Papers (11)
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The moderate Resolution Imaging Spectroradiometer (MODIS) is a multispectral satellite instrument operating from the visible to thermal infrared spectral range. FALL3D is a 3-D time-dependent Eulerian model for the transport and deposition of volcanic particles. In this letter, quantitative comparison between the volcanic cloud ash mass and optical depth retrieved by MODIS and modeled by FALL3D ha... View full abstract»

• ### On the Impact of Lossy Compression on Hyperspectral Image Classification and Unmixing

Publication Year: 2011, Page(s):253 - 257
Cited by:  Papers (34)
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Hyperspectral data lossy compression has not yet achieved global acceptance in the remote sensing community, mainly because it is generally perceived that using compressed images may affect the results of posterior processing stages. This possible negative effect, however, has not been accurately characterized so far. In this letter, we quantify the impact of lossy compression on two standard appr... View full abstract»

• ### Experimental Validation of a Simple System for Through-the-Wall Inverse Scattering

Publication Year: 2011, Page(s):258 - 262
Cited by:  Papers (4)
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In this letter, we propose a system for through-wall imaging based on a bistatic setup and a two-step inversion procedure. Since the adopted configuration is simple and low cost but only delivers a limited amount of data, the data-processing stage is tackled in a stepwise fashion. First, the targets are detected from the estimation of the surface impedance along the wall and then the area behind t... View full abstract»

• ### Improved Additive-Wavelet Image Fusion

Publication Year: 2011, Page(s):263 - 267
Cited by:  Papers (33)
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Effective image-fusion methods inject the necessary geometric information and preserve the radiometric information. To preserve the radiometric information, the injected high frequency of a panchromatic (pan) image must follow the frequency of the multispectral (MS) image. In this letter, an improved additive-wavelet (AW) fusion method is presented using the à trous algorithm. The proposed... View full abstract»

• ### Assessment of Temperature and Humidity Changes Associated With the September 2009 Dust Storm in Australia

Publication Year: 2011, Page(s):268 - 272
Cited by:  Papers (4)
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A historic dust storm affected the eastern portions of Australia between September 22 and 24, 2009, causing significant reductions in air quality and visibility. Using multiple satellite remote sensing data sets and meteorological information, we assess the distribution of dust aerosols and their potential effects on the Earth-atmosphere system. Spaceborne active lidar data showed that dust aeroso... View full abstract»

• ### Consistent Clustering of Radar Reflectivities Using Strong Point Analysis: A Prelude to Storm Tracking

Publication Year: 2011, Page(s):273 - 277
Cited by:  Papers (2)
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An image segmentation algorithm using an alternating erosion/dilation technique called strong point analysis (SPA) is introduced for general-purpose feature detection. The ability to associate and group pixels with the salient features of an image allows computers to consider images not as an array of values but as a collection of objects. This enables other algorithms to perform advanced tasks, s... View full abstract»

• ### Pattern-Based Accuracy Assessment of an Urban Footprint Classification Using TerraSAR-X Data

Publication Year: 2011, Page(s):278 - 282
Cited by:  Papers (18)
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Assessing the accuracy of land-cover classifications is a major challenge in remote sensing. This is mostly due to the absence of geometrically and thematically highly resolved, reliable, area wide, and up-to-date reference data. This study focuses on a multifaceted accuracy assessment of an urban footprint classification derived from a single-polarized TerraSAR-X image in stripmap mode for the ci... View full abstract»

• ### Retrieving Ice Concentration From SMOS

Publication Year: 2011, Page(s):283 - 287
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The Soil Moisture and Ocean Salinity (SMOS) Ice project explored the potential of retrieving sea-ice information from the SMOS satellite, a polar-orbiting L-band radiometer successfully launched in November 2009. Toward this end, radiance measurements were collected over the Northern Baltic during the Pol-Ice campaign. We test a simple ice-concentration retrieval algorithm on these data and compar... View full abstract»

• ### A Foreground/Background Separation Framework for Interpreting Polarimetric SAR Images

Publication Year: 2011, Page(s):288 - 292
Cited by:  Papers (3)
| | PDF (446 KB) | HTML

In this letter, we present a novel foreground/background separation (FBS) framework for interpreting polarimetric synthetic aperture radar (PolSAR) images. The FBS framework takes the spatial relations between pixels into consideration and incorporates the advantages of pairwise dissimilarity-based grouping schemes. The FBS method can separate specific targets and objects from the background, whic... View full abstract»

• ### Standard Deviation of Spatially Averaged Surface Cross Section Data From the TRMM Precipitation Radar

Publication Year: 2011, Page(s):293 - 297
Cited by:  Papers (6)
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We investigate the spatial variability of the normalized radar cross section of the surface (NRCS or σ0) derived from measurements of the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) for the period from 1998 to 2009. The purpose of this letter is to understand the way in which the sample standard deviation (SSD) of the σ0 data changes as a... View full abstract»

## Aims & Scope

IEEE Geoscience and Remote Sensing Letters (GRSL) is a monthly publication for short papers (maximum length 5 pages) addressing new ideas and formative concepts in remote sensing as well as important new and timely results and concepts.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Alejandro C. Frery
Universidade Federal de Alagoas