Anti-collision radars are used in automobiles applications to prevent accidents of vehicles by detecting obstacles in front of the vehicles. Generally the correlation radars are used for this purpose, which compute the distance and the relative speed between the vehicles, but problem is that the correlation radars are not capable to measure the angle. In this paper, we are presenting a VHDL des...

This paper addresses the local incidence angle dependence of several polarimetric indices corresponding to landslides in forested areas. Landslide is deeply related to the loss of human lives and their property. Various kinds of remote sensing techniques, including aerial photography, high-resolution optical satellite imagery, LiDAR and SAR interferometry (InSAR), have been available for landsl...

The differential propagation phase (ΦDP) of X-band dual-polarization weather radar (including phased-array radar, X-PAR) is important for estimating precipitation and classifying hydrometeors. However, the measured contains backscatter (δ), which poses difficulties application from radars. This paper presents following: (1) simulation characteristics analysis based on disdrometer DSD (raindrop ...

Ground-Based SAR system that obtains a high resolution 2D image on the ground is a new type of SAR system such as air-borne and space-borne SAR. The measured fully polarimetric SAR images with HH, HV, VH, and VV were focused using the Deramp-FFT (DF) algorithm in terms of their image formation principles. SAR polarimetry technique is concerned with control of the polarimetric properties of rada...

A statistical image model is proposed for segmenting polarimetric synthetic aperture radar (SAR) data into regions of homogeneous and similar polarimetric backscatter characteristics. A model for the conditional distribution of the polarimetric complex data is combined with a Markov random field representation for the distribution of the region labels to obtain the posterior distribution. Optim...

This paper makes the polarimetric and polarimetric interferometric synthetic aperture radar (PolInSAR) experiments with the highresolution X-band data acquired by Multi-mode airborne SAR system over an area around Linshui, south of China containing tropic vegetation and urban areas. Polarimetric analysis for typical tropic vegetations and man-made objects are presented, some polarimetric descri...

Radar Polarimetry and Polarimetric SAR Interferometry represent the current culmination in ‘Microwave Remote Sensing’ technology based on the Antennas, Propagation, Radar and Systems. The purpose and procedure of polarimetry and polarimetric interferometry are shown in Fig. 1. With polarimetric radar sensing, it is possible to carry out 1) detection of targets, 2) decomposition of scattering me...

The representation of deep convection in general circulation models is in part informed by cloud-resolving models (CRMs) that function at higher spatial and temporal resolution; however, recent studies have shown that CRMs often fail at capturing the details of deep convection updrafts. With the goal of providing constraint on CRM simulation of deep convection updrafts, ground-based remote-sens...

The National Science Foundation Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) [McLaughlin et al., 2005] will be deploying the first generation of an automated network of four low-power, X-band, polarimetric, Doppler radars in Oklahoma in spring 2006. This radar network, known as NETRAD, will map precipitation and detect, locate and track severe weather ...

Quantitative precipitation estimation and rainfall monitoring based on meteorological data, potentially provides continuous, high-resolution and large-coverage data, are of high practical use: Think of hydrogeological risk management, hydroelectric power, road and tourism. Both conventional long-range radars and rain-gauges suffer from measurement errors and difficulties in precipitation estima...