–Missile borne Monopulse receivers invariably track the target in three domains, namely frequency, range and angle. For effective jamming of these receivers, it is essential that breaking of the track should be achieved in at least two domains. In frequency domain, so long as the monopulse receiver locks onto the radar echo frequency, the radar tracks the target. When there is a disturbance int...

In previous work [1], we investigated the design of a two frequency synthetic aperture radar interferometer for estimating the sand layer thickness and the bedrock topography in deserts and arid areas. This was shown to be very useful in many applications such as oil field explorations, environmental studies and archaeological surveys. In order to test the inversion algorithm for different comp...

Airborne Inverse Synthetic Aperture Radar systems provide excellent surveillance abilities for imaging naval targets. Considering this as a maritime surveillance threat we derive a simulator system in this paper that can be used to synthesize false targets that would appear as credible military fleets. The resulting electromagnetic signature synthesis allows the implementation of returns that a...

In the navigational applications, radar and satellite requires a device that is a radar altimeter. The working frequency of this system is 4.2 to 4.3GHz and also requires less weight, low profile, and high gain antennas. The above mentioned application is possible with microstrip antenna as also known as planar antenna. In this paper, the microstrip antennas are designed at 4.3GHz (C-band) in r...

A new model-based iterative technique to correct for attenuation and differential attenuation and retrieve rain rate, based on a neural-network scheme and a differential phase constraint, is presented. Numerical simulations are used to investigate the efficiency and accuracy of this approach named NIPPER. The simulator is based on a T-matrix solution technique, while precipitation is characteri...

An ESM sensor composed of either a single channel or multi channel superhetrodyne receiver followed by Digital receiver and ELINT processor to identify radar emitters in a particular frequency band of interest. In real life, such systems may encounter with a continuous stream of pulses accompanied by many imperfections, and it should work on real-time basis. In order to handle such circumstance...

n 1965, a U.S. Navy airplane was shot down over North Vietnam by a Soviet surface-to-air missile. Shortly thereafter, the Navy sought countermeasures and tactics that could mitigate this threat. It became apparent that tests of airplanes in the presence of threat simulators could provide many answers to tactical problems as well as enhance and complement countermeasure system design and develop...

With the rise of high resolution multiple input output (MIMO) systems, radar became an important sensor in development Advanced Driver Assistance Systems (ADAS) and autonomous driving applications. Autonomous will rely strongly on artificial intelligence. Since most modern classification algorithms are based neural networks, they require huge amounts data to perform well, especially unexpected ...

in our country, student transportations’ security and driving accidents statistics for students is one of the major concerns for relevant organizations such as educational organization. in current year, a system, was named sepand, was formed in city taxi driver :::::::union::::::: by educational organization, naja traffic and city taxi driver :::::::union:::::::. in this systems’ plan, basis on...