Traditional radar sensing typically involves matched filtering between the received signal and the shape of the transmitted pulse. Under the confinement of classic sampling theorem this requires that the received signals must first be sampled at twice the baseband bandwidth, in order to avoid aliasing. The growing demands for target distinction capability and spatial resolution imply significan...

The problem of radar waveform design is of fundamental importance in designing state-of-the-art radar systems. The possibility to vary the transmitted signal on a pulse-by-pulse basis opens the door to great enhancement in estimation and detection capability as well as improved robustness to jamming. Furthermore modern radars can detect and track multiple targets simultaneously. Therefore, desi...

Detection of rain/no-rain condition on the ground is an important for application of radar rainfall algorithms. A radial basis function (RBF) neural network-based scheme for rain/no-rain determination on the ground using vertical profiles of radar data is described in this paper. Evaluation based on WSR-88D radar over central Florida indicates that rain/no-rain condition can be inferred fairly ...

A low cost Stepped Frequency Continuous Wave sensor is proposed in this work as radar module for the long range monitoring of environmental scenarios subject to landslide risk. A radar configuration based on the adoption of a variable scanning antenna array is proposed for the accurate detection of land movements. Furthermore, a X-band radar module prototype is realized and tested to demonstrat...

This paper focuses on the design of the master control software dedicated for the application of high-resolution polar detection ice radar. The central part of proposed software is FPGA, which plays roles of collecting radar echo data, playback of chirp signal, data transmission to upper computer, coherent integral accumulation of digitized data and system control of the whole radar system. The...

Low probability of intercept radar signals, which are often problematic to detect and characterize, have as their goal ‘to see and not be seen’. Digital intercept receivers are currently moving away from Fourier-based analysis and towards classical time-frequency analysis techniques for the purpose of analyzing these low probability of intercept radar signals. This paper presents the novel appr...

His professional expertise encompasses radar remote sensing, radar polarimetry, polarimetric scattering analysis, environmental change detection, polarimetric SAR image analysis for monitoring the planet earth. He and his group have developed “Four-component scattering power decomposition” for the utilization of polarimetric SAR image interpretation, which is one of the essential part of polari...

In this paper, we present our investigations on the use of single objective and multiobjective genetic algorithms based optimisation algorithms to improve the design of OFDM pulses for radar. We discuss these optimization procedures in the scope of a waveform design intended for two different radar processing solutions. Lastly, we show how the encoding solution is suited to permit the optimizat...

Noise radar is a very promising technology offering advantages which cannot be achieved in classical radar systems. Unfortunately, it has also several disadvantages. One of the most significant is the masking effect, where strong objects raise the noise floor preventing detection of weak ones and significantly affecting dynamic range. In this article method of designing waveform with reduced no...

A High-Frequency (HF) radar was installed by Ocean Networks Canada in Tofino, BC, to detect tsunamis from farand near-field sources on the Pacific Ocean side of Vancouver Island; in particular, from seismic sources in the Cascadia Subduction Zone. Based on a classical analysis of the Doppler spectrum, this HF radar can measure ocean surface currents up to a 85-110 km range depending on sea stat...