The Micro Rain Radar 2 (MRR) is a cost effective, minimum maintenance oriented, portable radar system used for conducting precipitation research. This system is prone to several draw backs such as lack of a sophisticated post-processing algorithm to improve its sensitivity, noise due to radar receiver and the lack of high quality Doppler radar moments. In this project work, we propose an improv...

A method is proposed to construct radar (or sonar) hyperimages from the knowledge of a backscattering function. Compared to usual imaging, the new feature is to treat on equal footing all parameters characterizing the image: frequency, di-rectivity and position of the bright points in the two-dimensional static case; frequency, velocity, position, and date of existence in the one-dimensional im...

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...

In this paper, the problem of low probability of identification (LPID) improvement for radar network systems is investigated. Firstly, the security information is derived to evaluate the LPID performance for radar network. Then, without any prior knowledge of hostile intercept receiver, a novel fuzzy chance-constrained programming (FCCP) based security information optimization scheme is present...

Transmitter and receiver circuits operating at 11 GHz system clock rate are described. These circuits, fabricated in a 0.8 μm SiGe-HBT technology, are the key elements of a radar head using a new ultra wideband principle.

The GPS Real-Time Ionospheric Monitoring System (GRIMS) has been operational at the Millstone Hill radar in Massachusetts since 1991 and at the FPS-85 radar in Florida since 1994. GRIMS employs GPS derived estimates of the total electron content (TEC) to provide real-time ionospheric corrections to radar measurements, incorporating data from a single receiver to generate TEC estimates for the e...

In this paper, we investigate the problem of low probability of intercept (LPI)-based adaptive radar waveform optimization in signal-dependent clutter for joint radar and cellular communication systems, where the radar system optimizes the transmitted waveform such that the interference caused to the cellular communication systems is strictly controlled. Assuming that the precise knowledge of t...

For now many years [1] [2], passive radars using transmitters of opportunity have been studied and their capabilities and limitations for detecting and localizing “classical” air targets are now quite well known. The most famous transmitters of opportunity considered are FM, DAB (Digital Audio Broadcasting), DVB (Digital Video Broadcasting) [3] and more recently, some studies are dealing with W...