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Frequency-Modulated Continuous-Wave Synthetic Aperture Radar (FMCW SAR) is a compact, cost-effective and high-resolution remote sensing system. The Frequency non-linearities of FMCW SAR seriously deteriorate its range resolution. To overcome this problem and integrate the non-linearity correction method into the imaging algorithm, in this paper, we propose a non-linear range-Doppler algorithm for...
Purpose of the paper is to present a solution for the target height estimation problem for multi-frequency multi-static passive radar. Aim of the proposed estimation strategy is to provide 2D passive sensors, which measure only bistatic range and Doppler, with target height estimation capability via the simultaneous exploitation of multiple FM transmitters (88–108 MHz). Results achieved with simulated...
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...
A new radar system, Sinusoidal Frequency Modulated Continuous Wave radar is used to estimate azimuth angles of radar targets. It overcomes the defect that the Linear Frequency Modulated Continuous Wave radar fails to determine the azimuth angles of multiple targets at the same distance simultaneously. However, it is more difficult to estimate azimuth angles from this complicated radar echoes than...
Co-designed radar-communication is becoming necessary, but there is a challenge to design suitable waveforms that can be simultaneously employed for information transmission and radar applications. This paper introduces the orthogonal frequency division multiplexing (OFDM) chirp radar waveform by embedding communication codes for co-designed radar-communication system from a top-level system description...
This paper describes the implementation of a pseudo-random noise radar system on a scalable sensor platform that consists of several multi-purpose 61- and 122-GHz transceivers in a Silicon-Germanium BiCMOS technology. The multi-band transceivers are equipped with a frequency multiplier to generate the 61- and 122-GHz carrier signals from a single 30.5-GHz LO signal and can be cascaded to build a MIMO...
In the paper the concept of a passive radar that uses several processing chains working with different setup parameters is considered. In the presented concept, the same signals are divided into blocks of different lengths, and processed simultaneously. In such way higher signal-to-noise ratios can be achieved for non-maneuvering targets by using longer integration time, whereas highly maneuvering...
A simple and effective technique is introduced to upgrade the operative bandwidth of a compact photonics-based ESM scanning receiver. The original 0.5 – 10.5 GHz covered frequency range is experimentally demonstrated to broaden to 28.5 GHz, limited by laboratory constraints, and a simulative analysis ensures exceeding the 0.5 – 40 GHz goal by simply employing commercially available electro-optical...
This paper presents different millimeter wave systems for robotic mapping and localization as well as for security scan applications. The 2D system in the first part of this paper is mechanically rotating the radar module to allow a continous revolving FMCW radar beam in azimuth plane. This extracted data is compared with the data of a LiDAR system. In the second part 3D imaging systems are presented...
Continuously improving analog and digital hardware nowadays enables powerful waveforms at low costs and thus makes radar an attractive and cheap sensor for new fields of application. One such field is human machine interfaces (HMI). In this work, gesture classification based on high resolution radar measurements as new type of HMI is investigated. For this purpose, wideband radar measurements of human...
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...
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