Sunday, August 12, 2012

AN/MPQ-64 Sentinel


The AN/MPQ-64 Sentinel is a three-dimensional radar used to alert and queue Short Range Air Defense (SHORAD) weapons to the locations of hostile targets approaching their front line forces.

The radar uses an X-band range-gated, pulse-doppler system.
The antenna uses phase-frequency electronic scanning technology, forming sharp 3D pencil beams covering large surveillance and track volume.
The radar automatically acquires, tracks, classifies, identifies and reports targets, including cruise missiles, unmanned aerial vehicles, rotary and fixed-wing aircraft.
It uses a high scan rate (30 RPM) and operates at a range of 40 km.
The radar is designed with high resistance to electronic countermeasures (ECM).
Mounted on a towed platform, it can be positioned remotely from the rest of the unit, operated autonomously and communicate with the Fire Distribution Center (FDC) via wideband fiber-optic link. It can also distribute its data over a SINCGARS radio network.

http://en.wikipedia.org/wiki/AN/MPQ-64_Sentinel

Sunday, July 29, 2012

GeoSAR Radar Mapping

GeoSAR is an airborne radar mapping system that produces 3D terrain data and imagery for generation of topographic maps and other derived products.

The system uses a technology known as interferometric synthetic aperture radar. Widely referred to as IFSAR, this technology is the radar equivalent of stereo vision in photogrammetry.

GeoSAR is the world’s only radar mapping system that simultaneously maps the ground beneath foliage (using P-band) and the surface features above the terrain using (X-band), in a single pass.

The system’s dual-band, dual-sided configuration rapidly acquires high resolution elevation data and radar imagery over regions previously considered inaccessible due to extreme weather and/or rugged terrain. GeoSAR is available worldwide exclusively from Fugro.

GeoSAR is the world’s only multi-band, single-pass airborne radar mapping system. Based on interferometric synthetic aperture radar technology, commonly referred to as IFSAR or InSAR, GeoSAR operates at very high altitudes and speeds to simultaneously map surface features (using X-band) and near bare-earth elevation (using P-band).

Developed in partnership with NASA’s Jet Propulsion Laboratory, Fugro commercialized the system in 2002 and has since mapped over 900,000 square kilometers using this one-of-a-kind system.

Our in-house radar engineers and scientists continue to improve the system’s capabilities and throughput while also expanding the range of applications that can be supported by GeoSAR data.


http://www.geosar.com/downloads/GeoSAR_Topographic_Mapping.pdf

http://www.geosar.com/ifsar.php