Reconstruction of the Reference Signal in DVB-T-based Passive Radar

2011 ◽  
Vol 57 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Marcin Baczyk ◽  
Mateusz Malanowski
Keyword(s):  
Reference Signal ◽  
Real Life ◽  
General Purpose ◽  
Digital Television ◽  
Passive Radar ◽  
Television Signal

Reconstruction of the Reference Signal in DVB-T-based Passive RadarIn the paper the problem of decoding of digital television signal and its reconstruction for the purpose of using it in passive radar is presented. The main focus is the reconstruction of the signal using a general purpose receiver, not dedicated to digital television signal reception. The performance of the proposed method is verified on simulated and real-life signals.

Polarisation experimental research of passive radar based on digital television signal

2018 ◽  
Vol 54 (6) ◽  
pp. 385-387 ◽  
Author(s):  
Yucheng Yi ◽  
Xianrong Wan ◽  
Jianxin Yi ◽  
Xiaomao Cao
Keyword(s):  
Experimental Research ◽  
Digital Television ◽  
Passive Radar ◽  
Television Signal

scholarly journals Experimental Seaborne Passive Radar

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2171
Author(s):  
Gustaw Mazurek ◽  
Krzysztof Kulpa ◽  
Mateusz Malanowski ◽  
Aleksander Droszcz
Keyword(s):  
Target Detection ◽  
Real Life ◽  
Radar System ◽  
Bistatic Radar ◽  
Digital Television ◽  
Passive Radar ◽  
Digital Radio ◽  
Operational Systems ◽  
Moving Platform ◽  
Passive Bistatic Radar

Passive bistatic radar does not emit energy by itself but relies on the energy emitted by illuminators of opportunity, such as radio or television transmitters. Ground-based passive radars are relatively well-developed, as numerous demonstrators and operational systems are being built. Passive radar on a moving platform, however, is a relatively new field. In this paper, an experimental seaborne passive radar system is presented. The radar uses digital radio (DAB) and digital television (DVB-T) for target detection. Results of clutter analysis are presented, as well as detections of real-life targets.

Energy Harvesting for Smart Shoes: A Real Life Application

2013 ◽  
Author(s):  
Emanuele Frontoni ◽  
Adriano Mancini ◽  
Primo Zingaretti ◽  
Andrea Gatto
Keyword(s):  
Energy Harvesting ◽  
Power Efficiency ◽  
Indoor Localization ◽  
Electrical Power ◽  
Real Life ◽  
Reducing Power ◽  
Electrical Energy ◽  
General Purpose ◽  
Technical Developments ◽  
Microprocessor Technology

Advanced technical developments have increased the efficiency of devices in capturing trace amounts of energy from the environment (such as from human movements) and transforming them into electrical energy (e.g., to instantly charge mobile devices). In addition, advancements in microprocessor technology have increased power efficiency, effectively reducing power consumption requirements. In combination, these developments have sparked interest in the engineering community to develop more and more applications that utilize energy harvesting for power. The approach here described aims to designing and manufacturing an innovative easy-to-use and general-purpose device for energy harvesting in general purpose shoes. The novelty of this device is the integration of polymer and ceramic piezomaterials accomplished by injection molding. In this spirit, this paper examines different devices that can be built into a shoe, (where excess energy is readily harvested) and used for generating electrical power while walking. A Main purpose is the development of an indoor localization system embedded in shoes that periodically broadcasts a digital RFID as the bearer walks. Results are encouraging and real life test are conducted on the first series of prototypes.

scholarly journals Design of a Wearable Eye-Movement Detection System Based on Electrooculography Signals and Its Experimental Validation

Biosensors ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 343
Author(s):  
Chin-Teng Lin ◽  
Wei-Ling Jiang ◽  
Sheng-Fu Chen ◽  
Kuan-Chih Huang ◽  
Lun-De Liao
Keyword(s):  
Eye Movement ◽  
Experimental Validation ◽  
Hardware Implementation ◽  
Detection System ◽  
Real Life ◽  
People With Disabilities ◽  
Research Area ◽  
General Purpose ◽  
Classification Algorithm ◽  
Human Computer Interface

In the assistive research area, human–computer interface (HCI) technology is used to help people with disabilities by conveying their intentions and thoughts to the outside world. Many HCI systems based on eye movement have been proposed to assist people with disabilities. However, due to the complexity of the necessary algorithms and the difficulty of hardware implementation, there are few general-purpose designs that consider practicality and stability in real life. Therefore, to solve these limitations and problems, an HCI system based on electrooculography (EOG) is proposed in this study. The proposed classification algorithm provides eye-state detection, including the fixation, saccade, and blinking states. Moreover, this algorithm can distinguish among ten kinds of saccade movements (i.e., up, down, left, right, farther left, farther right, up-left, down-left, up-right, and down-right). In addition, we developed an HCI system based on an eye-movement classification algorithm. This system provides an eye-dialing interface that can be used to improve the lives of people with disabilities. The results illustrate the good performance of the proposed classification algorithm. Moreover, the EOG-based system, which can detect ten different eye-movement features, can be utilized in real-life applications.

scholarly journals Compressed Sensing-Based Range-Doppler Processing Method for Passive Radar

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Xia Bai ◽  
Hejing Guo ◽  
Juan Zhao ◽  
Tao Shan
Keyword(s):  
Compressed Sensing ◽  
Cross Correlation ◽  
Processing Method ◽  
Sparse Reconstruction ◽  
Digital Television ◽  
Experimental Measurements ◽  
Passive Radar ◽  
Computational Burden ◽  
Chinese Standard ◽  
Classical Cross

Passive radar (PR) systems use the existing transmitters of opportunity in the environment to perform tasks such as detection, tracking, and imaging. The classical cross-correlation based methods to obtain the range-Doppler map have the problems of high sidelobe and limited resolution due to the influence of signal bandwidth. In this paper, we propose a novel range-Doppler processing method based on compressed sensing (CS), which performs sparse reconstruction in range and Doppler dimensions to achieve high resolution and reduces sidelobe without excessive computational burden. Results from numerical simulations and experimental measurements recorded with the Chinese standard digital television terrestrial broadcasting (DTTB) based PR show that the proposed method successfully handles the range-Doppler map formatting problem for PR and outperforms the existing CS-based PR processing methods.

Coherent Passive Backscatter Communications Using Ambient Transmitters

2014 ◽  
Vol 5 (2) ◽  
pp. 23-43
Author(s):  
William C. Barott ◽  
Kevin M. Scott
Keyword(s):  
Radio Frequency ◽  
Low Complexity ◽  
Data Rate ◽  
Experimental Results ◽  
Digital Television ◽  
Passive Radar ◽  
Detection Range ◽  
Backscatter Modulation ◽  
Radio Frequency Signals ◽  
Processing Algorithms

A communications method is presented based on the backscatter modulation of incident radio frequency signals using low-complexity tags. The incident signals arise from digital television stations used as illuminators of opportunity. A receiver detects the tag using coherent processing algorithms similar to those used in passive radar, extending the detection range over published noncoherent techniques. This method enables shared use of the UHF television band for low-data-rate applications. While analyses suggest that rates exceeding 1 kbps might be achievable at 1 km range, experimental results demonstrate the challenges in designing and implementing such a system.

scholarly journals Reference Signal Reconstruction Under Oversampling for DTMB-Based Passive Radar

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 74024-74038
Author(s):  
Xun Zhang ◽  
Jianxin Yi ◽  
Xianrong Wan ◽  
Yuqi Liu
Keyword(s):  
Signal Reconstruction ◽  
Reference Signal ◽  
Passive Radar

Business Document Exchange between Small Companies

2011 ◽  
pp. 482-510 ◽  
Author(s):  
Flavio Bonfatti ◽  
Paola Daniela Monari ◽  
Luca Martinelli
Keyword(s):  
Real Life ◽  
General Purpose ◽  
Practical Approach ◽  
Legacy Systems ◽  
Electronic Market ◽  
Small Companies ◽  
Minimal Impact ◽  
Theoretical Approaches ◽  
Reference Ontology ◽  
Working Practices

This chapter is aimed at presenting a practical approach, and its technological implementation, for enabling small companies to exchange business documents in different formats and languages with minimal impact on their legacy systems and working practices. The proposed solution differs from the general-purpose or theoretical approaches reported in other chapters of this book, as it is intended to focus on the basic interoperability requirements of small companies in their real life. Special attention is spent to show how to define a minimal reference ontology, use it for annotating the data fields in legacy systems, and map it onto existing standards in order to remove the cultural and technical obstacles for small companies to join the global electronic market. These techniques have been studied and prototyped, and are presently validated, by some EU-funded projects.

scholarly journals Cascaded Suppression Method for Airborne Passive Radar With Contaminated Reference Signal

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 50317-50329 ◽  
Author(s):  
Yaqi Deng ◽  
Jun Wang ◽  
Zhen Luo ◽  
Shuai Guo
Keyword(s):  
Reference Signal ◽  
Passive Radar ◽  
Suppression Method
Sign in / Sign up

Export Citation Format

Share Document