Cognitive radar is a new framework of radar system proposed by Simon Haykin recently. Adaptive waveform selection is an important problem of intelligent transmitter in cognitive radar. In this paper, the problem of adaptive waveform selection is modeled as stochastic dynamic programming model. Then backward dynamic programming, temporal difference learning and Q-learning are used to solve this ...

Passive, bistatic radar offers an attractive method for remotely detecting and imaging targets without the requirement of a dedicated transmitter. Passive radar systems are usually cheaper than their active counterparts, which easily allows for multi-sensor networks. Furthermore, passive radar systems are difficult to detect and jam. With these advantages come several challenges, however. Bista...

It is planned that the TIGER N.Z. radar will be a digital evolution of the current analog system, where the phasing matrix for both transmitter and receiver arrays, and the receiver architecture will be implemented in Field Programmable Gate Array (FPGA) technology. Producing a fully digital system in FPGA technology allows a different solution to the current analog approach. An added challenge...

This paper describes a 24GHz CMOS RF transceiver for car radar applications. The transceiver consists of 4-channel receiver array and 1-channel transmitter. The prototype is designed by standard RF CMOS 0.13-μm technology. The simulated receiver gain is 30dB and simulated tramsmitted output power is 15dBm at 24GHz.

A MIMO radar system is conveniently modeled via random matrices, and its optimal design strongly relies on spectral properties of the matrix exploited to build the model itself. We offer a way to model a High Resolution Radar (HRR) detection in the MIMO case, based on recent results on the asymptotic spectral analysis of random Vandermonde matrices with entries lying on the unit circle. Achieva...

To avoid the spatial variation of scattering characteristic effect, a three-dimensional synthetic aperture radar (3-D SAR) imaging based radar cross section (RCS) extraction technique with fixed transmitter is developed. The 3-D SAR image is used to extract targets’ RCS, so it can spatially distinguish different parts of a complex object, or the targets’ RCS from environment. With the abilities...

The propagation of ultra wide band (UWB) signals through walls is analyzed. For this propagation studies, it is necessary to consider not only propagation at a single frequency but in the whole band. The UWB radar output signal is formed by both transmitter and antenna. The effects of antenna receiving and transmitting responses for various antenna types (such as small and aperture antennas) ar...

We conducted two-dimensional continuous multi-offset georadar surveys on Bench Glacier, south-central Alaska, USA, to measure the distribution of englacial water. We acquired data with a multichannel 25MHz radar system using transmitter–receiver offsets ranging from 5 to 150m. We towed the radar system at 5–10 kmh with a snow machine with transmitter/receiver positions established by geodetic-g...

A scheme for multitarget identification and localization using bistatic MIMO radar systems is proposed. Multitarget can be distinguished by Capon method, as well as the targets angles with respect to transmitter and receiver can be synthesized using the received signals. Thus, the locations of the multiple targets are obtained and spatial synchronization problem in traditional bistatic radars i...