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The outcome of NATO SET-195 RTG concerning “Short term verification of DMPAR concept” gave promising results in the subject of centralized and decentralized fusion. Basing on this concept and study we further expand it to not only compare results of signal and data fusion, but also propose a processing framework in which both cueing and threshold management can be used. In this paper we present our...
In this paper DMPAR Evaluation Trials for Operationally Upgraded Radar (DETOUR) and their results for a selected scenario are described. The DETOUR trials were conducted by the SET-195 research task group (RTG) under an umbrella of NATO Science and Technology Organization from September 1 to 4, 2014 as a part of the DMPAR (Deployable Multi-band Passive/Active Radar) algorithms' evaluation process...
The paper presents a concept of a versatile signal processor designed for a modern, active electronically scanned array (AESA) radar. The flexibility of the design is high enough to support most advanced modes of operation, including multiple-input multiple-output (MIMO) modes and cognitive radar control, reacting in real time to changing air situations. The required signal processing power calculations...
This paper demonstrates performance evolution starting with a traditional one band active radar through a two band radar using MIMO (Multiple Input Multiple Output) data and signal fusion ending with a two band radar with some of a cognitive features such as resource management and waveform diversity. A probability of detection of small RCS targets can be improved by utilization of some MIMO processing...
We discuss the problem of poor initial estimation of altitude of distant and low located objects in PCL-PET data fusion. We focus here on tracking algorithm showing how one can make the convergence of the estimate to the real value faster. The main result is that on having replaced extended Kalman filter with unscented Kalman filter, we are able to choose from scenarios with various initial conditions...
To protect radar against missile attacks a system of additional microwave signal emitters is used. These so-called traps or decoys should emit pulses that might hinder the precise targeting of the protected source by forming a composed microwave radiation signal. The simulation model of the radar system and radar traps is proposed. The designed simulation model allows to estimate the probability of...
The topic of data fusion on the level of plots in a multistatic, multiband netted radar is widely recognized as a topic of interest in the radar community. PCL-PET system currently under development in PIT-RADWAR S.A. is an example of such approach. Earlier analyses have shown, that unique capabilities provided by the two types of the passive sensors will greatly enchance parameters of the combined...
In this article we discuss certain aspects of the algorithm for data processing in the PCL - PET passive radar system. We discuss the part of the fusion algorithm which is used for object tracking and estimate improvement. We also propose a method for bistatic measurements classification using the predicted object position and covariance matrices. Proposed algorithm is also suitable for asynchronous...
In this article we discuss certain aspects of the algorithm for data processing in the PCL - PET passive radar system.We discuss the initial part of the fusion algorithm the main function of which is to provide the number of objects, their position estimations and the covariance matrix of these estimates. The measurement data model and processing scheme is presented and discussed. Presented fusion...
The aim of this paper is to evaluate performance of three radar system concepts that act as a sensor for ground based missile defence focused on defending an asset of critical importance. The signal model and processing scheme is presented and discussed. Appropriate multi-band fusion algorithms for collocated and dislocated sensors have been implemented and used to improve overall sensor efficiency...
In this article we discuss certain aspects of compressed sensing application in the context of radar systems. We thoroughly analyze the framework of the paper [4] and propose the directions of generalizations. In particular we consider a rectangle time frequency grid of non-prime type, non-Allotop carrier signals of the length non-equal to the length of time grid, incoherent carrier and grid frequency...
The paper addresses important problems related to improvement of probability or equivalently an improvement of range of the detection of targets. The probability of detection of targets can be improved by fusion of non-coherent signals and/or plots from a few independents radars (channels) working in different bands. As an example multiband passive-active radar system working simultaneously in four...
A technical data and a project of the structure the radar detected hovering helicopters is shown in the paper. The results of research simulation and range tests of prototype are presented also. They indicate that this solution of radar was properly chosen.
In the paper, a project of a planar patch array antenna in K band intended for application in an FMCW alert radar sensor is shown. The structure of such an antenna consists of 24 × 14 patches; the results of simulation and real measurements of the antenna are presented.
In this paper, the methodology of modelling the multiband radar based on radar equations for search and cued search radar is presented. This methodology was work out under assumption that the processing in each band is independent. Based on this methodology and real data of S/N from trials there were done appropriate calculations to have the parameters of the model of dual band radar (VHF, C band)...
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