Traditional antipersonnel (AP) land mines are an effective military tool, but they are unable to distinguish friend from foe, or civilian from military personnel. The concept described here uses an advanced moving target indicator (MTI) radar to scan the minefield in order to detect movement towards or within the minefield, coupled with visual identification by a human operator and a communicat...

Accurate ship detection from radar imagery needs a proper statistical characterization of both target and sea scattering. Even if a statistical model for the target class is not available, effective discrimination between “sea” and “nonsea” classes can be achieved making use of a good model for the sea scattering distribution (i.e. anomaly detection). Hence, the retrieval of the statistical cha...

British and Allied memoirs and histories have contributed to the rise of three myths concerning the discovery and employment of radar. These myths are as follows. The first myth is that Sir Robert Watson-Watt is the father and sole inventor of radar. The second is that Germany’s discovery and realization of radar’s military worth occurred after 1940 following exposure to British systems. The th...

The synthetic aperture radar principle has been discovered in the early 50. Since then, a rapid development took place all over the world and a couple of airand space-borne systems are operational today. Progress made in technology and digital signal processing lead to very flexible systems useful for military and civilian applications. Radar has proved to be valuable before, because of its day...

BACKGROUND Radar transmitters emit high-power radiofrequency radiation by creation of a high-voltage and high-frequency alternating electrical current. METHODS Health effects of occupational exposure to military radar were investigated. Visual reaction time was recorded with a simple blind computer-assisted-visual reaction time test. To assess the short-term memory, modified Wechsler Memory S...

Research Corporation (SRC), where I worked on radar systems engineering, signal processing, and system simulation. The first radar system that I worked on was a man-portable battlefield surveillance radar, to be used by military intelligence units of the United States Army. That radar system was necessarily small and simple, and therefore did not possess large computational ability. Mechanical ...

Radar Cross Section is most of the time defined in far field. In that case, RCS is totally independent of the range between the radar and the target. However, in several kinds of military scenario, it can be more realistic to deal with the target nearfield scattering characteristics. Using a relation to define near-field RCS, this communication proposes simple and approximated analytical formul...

Classification of objects based on Radar Cross Section (RCS) has several military and civilian applications. Feature extraction is an important step in the classification process. The resonances (features) of an object are unique and are independent of the look angles (aspect). A database created with the resonances of known radar targets help in the classification of targets. A method to extra...

Bistatic synthetic aperture radar (SAR) imaging from very asymmetric configuration is a promising technique for both military and civilian issues. Indeed, an illuminating radar standing off at a safe distance may be combined with a low cost, possibly unmanned air vehicle using a passive radar receiver operating at closer range. Practical civilian application could be high resolution remote sens...

Radar warning systems are found in all modern fighter aircraft and their main purpose is to warn pilots of enemy military units such as radar stations, aircraft and missiles. Testing these systems for fighters in real life is an expensive, complex and somewhat dangerous task. Hence engineers aim to test these systems in an artificial environment by the use of software in order to simulate hour-...