3D representation of Radar electromagnetic information affected by terrain, ocean and weather is an unavoidable problem in the future digital battlefield. Based on APM(Advanced Propagation Model), in-plane propagation loss was calculated by the virtual of digitalized virtual battlefield. Then 2D in-plane coverage of given Radar was deduced. At last multiple such 2D coverage were combined togeth...

Snow crystals consist of many different types of ice particles. Typical radar measurements observe only bulk properties of all types of ice particles present in a radar volume. Due to their difference in radar cross-section, larger particles will reflect more power of the transmitted radar signal, than small particles. If small and large particles are present in the same radar volume with compa...

Abstruct-A simple physical model of the melting layer of precipitation is presented. It is able to simulate the polarizationdependence of radar reflections and radio signals propagating through the melting layer. The radar observables are calculated in the Rayleigh regime. The propagation observables are given in the range of 5-50 GHz, and are calculated with an extended Rayleigh approximation....

Mitsubishi Electric Corporation has developed a millimeter-wave radar for automotive application. Monolithic microwave integrated circuits (MMICs), developed specifically for this application by Mitsubishi Electric, are used for the radio-frequency (RF) module to obtain outstanding radar performance. This millimeter-wave radar incorporates a signal-processing unit in the radar head, resulting i...

In 1996, the last of the 136 operational Weather Surveillance Radar-1988 Doppler (WSR-88D) Next Generation Radar radar sites in the contiguous United States was put into operation, completing a major component of the National Weather Service (NWS) modernization program. This radar network, along with improvements in profilers and weather satellites, represents a continuing shift from in situ to...

Generating a multi-sensor precipitation product over radar gap area is the objective of the present study. A merging approach is developed to improve Satellite-based Precipitation Estimates (SPE) by merging with ground-based Radar Rainfall (RR) estimates because remote satellites are the only source that can collect information from areas where are inaccessible by ground-based radar and/or rain...

This tutorial describes the basis of passive bistatic radar (PBR) systems, and in particular the nature of the waveforms of illuminators of opportunity that they exploit. It shows that there is a wide variety of such waveforms, from broadcast, communications and radionavigation transmissions, and that in general they are not optimum for radar purposes. In addition, they usually vary significant...

Multiple-input multiple-output (MIMO) radar is a relatively new concept in the field of radar signal processing. Many novel MIMO radar waveforms have been developed by considering various performance metrics and constraints. In this paper, we show that finite alphabet constant-envelope (FACE) quadrature-pulse shift keying (QPSK) waveforms can be designed to realize a given covariance matrix by ...

A polarimetric ground-based radar (GB-radar) system operated in the L-band has been developed. The frequency range of GB-radar is 1.215 to 1.3 GHz, which is the same as that of Japanese satellite-borne SAR, PALSAR-2 (Phased Array type L-band Synthetic Aperture Radar), and Japanese L-band air-borne radar, i.e., Pi-SAR-L2 (Polarimetric and Interferometric Airborne Synthetic Aperture Radar L2). Po...