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GEOPHYSICAL PARAMETER RETRIEVAL FOR MICROWAVE C BAND SYNTHETIC APERTURE RADAR (SAR) DATASET USING INTEGRAL EQUATION MODEL
Microwave SAR Geophysical Parameters IEM Modelling
2019/2/28
The microwave remote sensing is highly useful, as it provides synoptic observation of the Earth’s surface or planetary bodies, regardless of day or night and the atmospheric conditions, propagation th...
The D-lemma: narrow-band UV type B radiation versus vitamin D supplementation versus sunlight for cardiovascular and immune health
narrow-band UV type B vitamin D immune health
2018/11/13
In this issue of the Journal, Ponda et al. (1) report on the role of vitamin D and narrow-band UV type B (UVB) irradiation on the blood lipid profile of healthy adults. They previously observed that t...
Ernst Sachse: Concertino for Cornet and Brass Band in E flat（音频）
Ernst Sachse Concertino for Cornet and Brass Band in E flat 音频
2017/3/31
Ernst Sachse: Concertino for Cornet and Brass Band in E flat（音频）。
Influence of Two Different Exercise Programs on Physical Fitness and Cognitive Performance in Active Older Adults: Functional Resistance-Band Exercises vs. Recreational Oriented Exercises
Aging reaction time physical activity program cognitive capacity
2016/2/23
This study examines the impact of a resistance-band functional exercise program, compared with a recreational exercise program, on physical fitness and reaction times in persons older than 60 years. F...
Band Width Selection for High Dimensional Covariance Matrix Estimation
Bandable covariance Banding estimator Large p, small n Ratio- consistency Tapering estimator Thresholding estimator
2016/1/25
The banding estimator of Bickel and Levina (2008a) and its tapering version of Cai, Zhang and Zhou (2010), are important high dimensional covariance esti-mators. Both estimators require choosing a ban...
Band Width Selection for High Dimensional Covariance Matrix Estimation
Bandable covariance Banding estimator Large p small n
2016/1/20
The banding estimator of Bickel and Levina (2008a) and its tapering version of Cai, Zhang and Zhou (2010), are important high dimensional covariance esti-mators. Both estimators require choosing a ban...
In May 2008, Ofcom’s L-band auction concluded. This was Ofcom’s second combinatorial
clock auction. The auction used an innovative format intended to encourage an efficient
assignment of the 17 lo...
Short pulse equations and localized structures in frequency band gaps of nonlinear metamaterials
Short pulse propagation nonlinear metamaterials nonlinear dielectric short pulse linear electromagnetic waves magnetic permeability
2014/12/24
We consider short pulse propagation in nonlinear metamaterials characterized by a weak Kerr-type nonlinearity in their dielectric response. Two short-pulse equations (SPEs) are derived for the high- a...
Development, Deployment, and Characterization of a Ku-band Interferometer
Radar Interferometry FM-CW DEM Interferogram Topography
2014/12/8
Space-borne radar interferometry provides a global vantage point to understand climate change, global weather phenomenon, and other Earth dynamics. For climate change observations, space-borne interfe...
An Electronically Reconfigurable Three Band Low-Noise Amplifier in 0.5 μm GaAs pHEMT Technology
RFIC MMIC LNA Reconfigurable IC
2014/12/8
State-of-the-art RF front-end circuits are typically designed to operate at a single frequency. With an increasing number of available wireless standards, personal mobile communication devices require...
Integrated CMOS IQ Upconverter/Downconverter for an X-Band Phased-Array Radar Application
RF CMOS X-Band Quadrature Conversion Injection Locking Quadrature Coupling Inegrated Mixer
2014/12/8
This thesis describes the design and measurement of an X-band IQ up/down converter that has been fabricated on a 180nm RF CMOS process. This converter includes components for mixing, frequency doublin...
Integration And Measurements of a Ka-Band Interferometric Radar in an Airborne Platform
interferometry radar ka-band
2014/12/8
The Topographic Interferometry Mapping Mission (TIMMi) instrument is a unique millimeter wave interferometric radar system operating at 35 GHz (Ka-band). It was constructed in part to advance the tech...
SiGe Millimeter-Wave (W-Band) Down-Converter for Phased Focal Plane Array
down-conveter phase focal plane array match networks
2014/12/8
A millimeter-wave (W-Band) down-converter for Phased Focal Plane Arrays (PFPAs) has been designed and fabricated using the IBM Silicon-Germanium (SiGe) BiCMOS 8HP process technology. The radio frequen...
Design and Evaluation of an L-Band Current-Mode Class-D Power Amplifier Integrated Circuit
power amplifier mixer integrated circuit model efficiency
2014/12/8
Power amplifiers (PAs) convert energy from DC to high frequencies in all radio and microwave transmitter systems be they wireless base stations, handsets, radars, heaters, and so on. PAs are the domin...
Bi-Directional Vector Variable Gain Amplifier for an X-Band Phased Array Radar Application
variable gain phased array complex gain bi-directional amplifier quadrature
2014/12/8
This thesis presents the design, layout, and measurements of a bi-directional amplifier with variable vector (in-phase / quadrature) gain control that will be part of an electronically steered phased ...