Radar has been used for remote sensing and surveillance for decades. Nowadays radar remote sensing and radar surveillance is used for many different things in the modern society. Radar can sense objects or environments from very long distance. Electromagnetic radar waves can work where and when light cannot. This unique ability of radar made remote sensing techniques available in research and i...

A ship detection and tracking algorithm for HF-radar is evaluated by comparison to Automatic Identification System (AIS) and satellite borne Synthetic Aperture Radar (SAR) data to provide an estimate of the detection and false alarm rate performance in a real operational scenario. This paper presents results from the HF-radar experiment that is ongoing since May 2009 and operates two HF-radar s...

Radar reflectivity data can be quality-controlled using just the radar moments, and several techniques have been proposed to do this. It is possible to use texture features as inputs to a neural network to discriminate between precipitating radar echoes, and echoes that correspond to clear-air return, ground clutter or anamalous propagation. A texture feature neural network that was recently de...

In lunar exploration, spaceborne high frequency (HF) radar sounder is an effective tool for investigation of lunar subsurface structure in lunar exploration [1] [2]. The primary strategy for radar sounder detection of subsurface structure is through the time delay and intensity difference of the lunar surface and subsurface nadir echoes (Figure 1). It is important to fully understand electromag...

Much useful information about physical and dynamical properties can be obtained from radar observations of near-Earth asteroids (NEAs) that come within reach of 1 Resolution of echoes in Doppler frequency and/or time groundbased radar telescopes . delay can be used to synthesize 1-D or 2-D images that show a target’s size, shape and rotation. Disc-integrated measurements also have value, becaus...

Design and Feasibility Testing for a Ground-based, Three-dimensional, Ultra-high-resolution, Synthetic Aperture Radar

-Remote Sensing technologies provide the spatial data/maps and offer great advantages for a land consolidation project. But sometimes in some regions, optics and infrared remote sensing can not work well. SAR (Synthetic aperture radar), an active microwave remote sensing imaging radar, has the unique capabilities of obtaining abundant electromagnetic information from ground objects all day/all ...

The aim of angular super-resolution is to surpass the real-beam resolution. In this paper, a method for forward-looking scanning radar angular super-resolution imaging through a deconvolution method is proposed, which incorporates the prior information of the target’s scattering characteristics. We first mathematically formulate the angular super-resolution problem of forward-looking scanning r...

A new efficient dual-resolution (DR) data assimilation algorithm is developed based on the ensemble Kalman filter (EnKF) method and tested using simulated radar radial velocity data for a supercell storm. Radar observations are assimilated on both high-resolution and lower-resolution grids using the EnKF algorithm with flow-dependent background error covariances estimated from the lower-resolut...

Because they are most sensitive to atmospheric moisture content, radar refractivity observations can provide high-resolution information about the highly variable low-level moisture field. In this study, simulated radar refractivity-related phase-change data were created using a radar simulator from realistic highresolution model simulation data for a dryline case. These data were analyzed usin...