By Topic

# IEEE Transactions on Geoscience and Remote Sensing

## Issue 6  Part 2 • June 2011

This issue contains several parts.Go to:  Part 1

## Filter Results

Displaying Results 1 - 25 of 31
• ### [Front cover]

Publication Year: 2011, Page(s): C1
| PDF (344 KB)
• ### IEEE Transactions on Geoscience and Remote Sensing publication information

Publication Year: 2011, Page(s): C2
| PDF (41 KB)

Publication Year: 2011, Page(s):2181 - 2182
| PDF (52 KB)
• ### Aerial Radiometric and Video Measurements of Whitecap Coverage

Publication Year: 2011, Page(s):2183 - 2193
Cited by:  Papers (3)
| | PDF (1471 KB) | HTML

This paper presents the results of high-altitude microwave radiometric and video measurements in the presence of breaking waves made during the passage of Hurricane Dean on August 21, 2007, over the Gulf of Mexico. Previous measurements of foam fraction and radiometric brightness temperature have focused on the small scale, in which individual foam patches were of the same scale as the radiometer ... View full abstract»

• ### Water Vapor Continuum Absorption in the Microwave

Publication Year: 2011, Page(s):2194 - 2208
Cited by:  Papers (24)
| | PDF (1017 KB) | HTML

The accurate modeling of continuum absorption is crucial for the so-called window regions of the spectrum, the relatively transparent regions between lines. The window regions in the microwave are of critical importance for Earth remote sensing and data assimilation. Presented in this paper is an evaluation of the widely used Mlawer, Tobin, Clough, Kneizys, and Davis (MT_CKD) water vapor continuum... View full abstract»

• ### The PARIS Ocean Altimeter In-Orbit Demonstrator

Publication Year: 2011, Page(s):2209 - 2237
Cited by:  Papers (89)
| | PDF (1628 KB) | HTML

Mesoscale ocean altimetry remains a challenge in satellite remote sensing. Conventional nadir-looking radar altimeters can make observations only along the satellite ground track, and many of them are needed to sample the sea surface at the required spatial and temporal resolutions. The Passive Reflectometry and Interferometry System (PARIS) using Global Navigation Satellite Systems (GNSS) reflect... View full abstract»

• ### Influence of Geometrical Configurations and Polarization Basis Definitions on the Analysis of Bistatic Polarimetric Measurements

Publication Year: 2011, Page(s):2238 - 2250
Cited by:  Papers (5)
| | PDF (916 KB) | HTML

Within the frame of bistatic polarimetry, this paper discusses the entangled effects of bistatic geometry and target features on polarimetric measurements. Three different geometrical effects are distinguished: antenna rotations, target orientation, and bistatic angle. Antenna rotations are addressed through the use of polarimetric bases taking the scattering plane as the reference plane. Target o... View full abstract»

• ### Four-Component Scattering Power Decomposition With Rotation of Coherency Matrix

Publication Year: 2011, Page(s):2251 - 2258
Cited by:  Papers (166)
| | PDF (1314 KB) | HTML

This paper presents an improvement to a decomposition scheme for the accurate classification of polarimetric synthetic aperture radar (POLSAR) images. Using a rotation of the coherency matrix to minimize the cross-polarized component, the four-component scattering power decomposition is applied to fully polarimetric SAR images. It is known that oriented urban area and vegetation signatures are dec... View full abstract»

• ### Radar Detection of Moving Targets Behind Corners

Publication Year: 2011, Page(s):2259 - 2267
Cited by:  Papers (16)
| | PDF (687 KB) | HTML

Detection of moving objects concealed behind a concrete wall corner has been demonstrated, using Doppler-based techniques with a stepped-frequency radar centered at 10 GHz, in a reduced-scale model of a street scenario. Micro-Doppler signatures have been traced in the return from a human target, both for walking and for breathing. Separate material measurements of the reflection and transmission o... View full abstract»

• ### Relative Calibration Using Natural Terrestrial Targets: A Preparation Towards Oceansat-2 Scatterometer

Publication Year: 2011, Page(s):2268 - 2273
Cited by:  Papers (9)
| | PDF (1001 KB) | HTML

Scatterometer instruments transmit a series of microwave pulses and measure the returned echo to determine the normalized radar cross section (σ0) over the target to derive the near-ocean-surface wind vector. Accuracy of the derived wind vector over the data sparse oceans therefore depends on the accuracy of σ0 measurement. For this purpose, accurate calibration... View full abstract»

• ### Bias in Copolar Correlation Coefficient Caused by Antenna Radiation Patterns

Publication Year: 2011, Page(s):2274 - 2280
Cited by:  Papers (17)
| | PDF (216 KB) | HTML

We present a theoretical study of the bias in the copolar correlation coefficient caused by cross-polar radiation patterns and by unmatched horizontal and vertical copolar radiation patterns. The analysis of the bias induced by cross-polarization radiation is carried out for both modes of operation of polarimetric radars, designated as the simultaneous transmission and reception of horizontally an... View full abstract»

• ### Application of the Matrix-Variate Mellin Transform to Analysis of Polarimetric Radar Images

Publication Year: 2011, Page(s):2281 - 2295
Cited by:  Papers (58)
| | PDF (656 KB) | HTML

In this paper, we propose to use a matrix-variate Mellin transform in the statistical analysis of multilook polarimetric radar data. The domain of the transform integral is the cone of complex positive definite matrices, which allows for transformation of the distributions used to model the polarimetric covariance and coherency matrix. Based on the matrix-variate Mellin transform, an alternative c... View full abstract»

• ### Scale Filtering for Improved Nowcasting Performance in a High-Resolution X-Band Radar Network

Publication Year: 2011, Page(s):2296 - 2307
Cited by:  Papers (3)
| | PDF (1353 KB) | HTML

Precipitation patterns exist on a continuum of scales where generally larger scale features facilitate longer useful prediction times at the expense of coarser resolution. Favorable measurement range and resolution make weather radar observations an attractive choice for input to automated short-term weather prediction (nowcasting) systems. Previous research has shown that nowcasting performance c... View full abstract»

• ### Focus Improvement of Highly Squinted Data Based on Azimuth Nonlinear Scaling

Publication Year: 2011, Page(s):2308 - 2322
Cited by:  Papers (29)
| | PDF (1495 KB) | HTML

Since synthetic aperture technology was employed in radar signal processing, the information capability of radar has greatly been enhanced. A lot of imaging algorithms have also been developed. However, the high-resolution imaging for highly squinted synthetic aperture radar data is still a difficult issue due to large range migration and strong range dependence on the secondary range compression ... View full abstract»

• ### A Null-Space Method for the Phase Unwrapping of Multitemporal SAR Interferometric Stacks

Publication Year: 2011, Page(s):2323 - 2334
Cited by:  Papers (21)
| | PDF (998 KB) | HTML

Multitemporal differential interferometric synthetic aperture radar analysis is of fundamental importance in the monitoring of Earth surface displacements. In this context, a key role for the reconstruction of the deformation maps and time series is played by the phase unwrapping (PhU) that reconstructs the unrestricted phase signals starting from the measured wrapped versions, i.e., the interfero... View full abstract»

• ### Evaluating ScanSAR Interferometry Deformation Time Series Using Bursted Stripmap Data

Publication Year: 2011, Page(s):2335 - 2342
Cited by:  Papers (4)
| | PDF (1544 KB) | HTML

We demonstrate scanning synthetic aperture radar (ScanSAR) advanced radar interferometry processing for surface deformation time series analysis. We apply the small baseline subsets (SBAS) technique to ScanSAR data synthesized from 40 ERS-1 and ERS-2 stripmap SAR images over known deformation in Phoenix, Arizona. The strategy is to construct a burst pattern similar to Envisat ScanSAR data for two ... View full abstract»

• ### ALGAE: A Fast Algebraic Estimation of Interferogram Phase Offsets in Space-Varying Geometries

Publication Year: 2011, Page(s):2343 - 2353
Cited by:  Papers (16)
| | PDF (1039 KB) | HTML

This paper deals with the estimation of terrain topography from multipass synthetic aperture radar (SAR) interferometry (InSAR), focusing on the case where variation of the system geometry within the imaged swath is relevant. A typical case is represented by airborne multipass interferometric campaigns where, due to the closeness between the radar sensor and the targets, the incidence-angle sensit... View full abstract»

• ### Merging GPS and Atmospherically Corrected InSAR Data to Map 3-D Terrain Displacement Velocity

Publication Year: 2011, Page(s):2354 - 2360
Cited by:  Papers (26)
| | PDF (419 KB) | HTML

A method to derive accurate spatially dense maps of 3-D terrain displacement velocity is presented. It is based on the merging of terrain displacement velocities estimated by time series of interferometric synthetic aperture radar (InSAR) data acquired along ascending and descending orbits and repeated GPS measurements. The method uses selected persistent scatterers (PSs) and GPS measurements of t... View full abstract»

• ### Three-Dimensional Target Geometry and Target Motion Estimation Method Using Multistatic ISAR Movies and Its Performance

Publication Year: 2011, Page(s):2361 - 2373
Cited by:  Papers (11)
| | PDF (1393 KB) | HTML

Inverse synthetic aperture radar (ISAR) is one of the radar techniques used to observe 2-D images of a remotely based target using radio waves. If we keep observing the target and consecutively generate multiple ISAR images, which we call an ISAR movie, the target image varies considerably due to the motion of the target. The authors have proposed an algorithm for reconstructing a 3-D target shape... View full abstract»

• ### Identification of Inclined Ionospheric Layers Using Analysis of GPS Occultation Data

Publication Year: 2011, Page(s):2374 - 2384
Cited by:  Papers (3)
| | PDF (663 KB) | HTML

The ionosphere and atmosphere may have significant impacts on the high-stable navigational signals of the Global Positioning System (GPS) in the communication link satellite to satellite. The classification of the different types of the ionospheric impact on the phase and amplitude of the GPS signals at altitudes of 40-90 km is introduced using the CHAllenging Minisatellite Payload (CHAMP) radio o... View full abstract»

• ### Stability of Sample-Based Scanning-LiDAR-Derived Vegetation Metrics for Forest Monitoring

Publication Year: 2011, Page(s):2385 - 2392
Cited by:  Papers (24)
| | PDF (373 KB) | HTML

The objective of this paper is to gain insights into the reproducibility of light detection and ranging (LiDAR)-derived vegetation metrics for multiple acquisitions carried out on the same day, where we can assume that forest and terrain conditions at a given location have not changed. Four overlapping lines were flown over a forested area in Vancouver Island, British Columbia, Canada. Forty-six 0... View full abstract»

• ### Volumetric IR Laser Monitoring for the Estimation of the Gas Emission Flux by Surface Sources: Method and Simulation Results

Publication Year: 2011, Page(s):2393 - 2401
| | PDF (1300 KB) | HTML

A measurement approach is presented for estimating the gas emission flux by a surface source based on the use of infrared laser measurements along optical links. An ad hoc arrangement optical links surrounding the emission area allows one to measure gas concentration over a close surface corresponding to an air volume that covers the whole emission area. We show some simulation results of surface ... View full abstract»

• ### A Comparison of Signal Deconvolution Algorithms Based on Small-Footprint LiDAR Waveform Simulation

Publication Year: 2011, Page(s):2402 - 2414
Cited by:  Papers (21)
| | PDF (1928 KB) | HTML

A raw incoming (received) Light Detection And Ranging (LiDAR) waveform typically exhibits a stretched and relatively featureless character, e.g., the LiDAR signal is smeared and the effective spatial resolution decreases. This is attributed to a fixed time span allocated for detection, the sensor's variable outgoing pulse signal, receiver impulse response, and system noise. Theoretically, such a l... View full abstract»

• ### Assessment of MODIS Thermal Emissive Band On-Orbit Calibration

Publication Year: 2011, Page(s):2415 - 2425
Cited by:  Papers (7)
| | PDF (519 KB) | HTML

Sixteen Moderate Resolution Imaging Spectroradiometer thermal emissive bands (TEBs) cover the wavelength from 3.75 to 14.24 μm. TEB calibration uses data collected from the detector responses to the onboard blackbody (BB) and space view. The BB was designed to operate either at a constant temperature for detector linear gain calibration or at temperatures varying from ambient (~270 K) to 31... View full abstract»

• ### Identification and Correction of Residual Image in the $hbox{O}_{2}$ A-Band of the Orbiting Carbon Observatory

Publication Year: 2011, Page(s):2426 - 2437
Cited by:  Papers (2)
| | PDF (1325 KB) | HTML

The detector used for the O2 A-band (0.76 μm) of the National Aeronautics and Space Administration's Orbiting Carbon Observatory (OCO) employed a HyViSI Hawaii-1RG sensor, operating at 180 K in a rolling read-out mode. During the thermal vacuum testing of the flight instrument, it was discovered that the detector exhibited residual images that lasted for many seconds and were of ... View full abstract»

## 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

Editor-in-Chief
Antonio J. Plaza