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Extended Imaging Algorithm Based on Aperture Synthesis With Double-Scattered Waves for UWB Radars

S. Kidera, T. Sakamoto, T. Sato
2011 IEEE Transactions on Geoscience and Remote Sensing  
Index Terms-Complex-shaped or multiple targets, doublescattered waves, shadow region imaging, synthetic aperture radar (SAR), ultrawideband (UWB) radars.  ...  Ultrawideband (UWB) pulse radar with high range resolution is suitable for near-field sensing.  ...  Several studies based on the analysis of multiple-scattered components have been reported.  ... 
doi:10.1109/tgrs.2011.2158108 fatcat:bu3xeji5frfpdae2cr47ujudti

Real time Adaptive Approach for Hidden Targets Shape Identification using through Wall Imaging System

Sandeep Kaushal, Bambam Kumar, Prabhat Sharma, Dharmendra Singh
2021 Defence Science Journal  
In Through-wall Imaging (TWI) system, shape-based identification of the hidden target behind the wall made of any dielectric material like brick, cement, concrete, dry plywood, plastic and Teflon, etc.  ...  is one of the most challenging tasks.  ...  A time-delay difference curve (TDDC) has been used to estimate the target's contour behind walls with known wall parameters using UWB-SP radar 28 .  ... 
doi:10.14429/dsj.71.16696 fatcat:ythitt2ayvfqxkpuql6oayyjlq

Ultra-wideband communications - An idea whose time has come

Liuqing Yang, G.B. Giannakis
2004 IEEE Signal Processing Magazine  
applications: short-range very high-speed broadband access to the Internet, covert communication links, localization at centimeter-level accuracy, high-resolution ground-penetrating radar, through-wall  ...  This tutorial focuses on UWB wireless communications at the physical layer.  ...  His general interests span the areas of communications and signal processing, estimation and detection theory, time-series analysis, and system identification, on which he has published more than 200 journal  ... 
doi:10.1109/msp.2004.1359140 fatcat:wpf7n3shlbb27kyld2xxtkvzuu

Wall Compensation for Ultra Wideband Applications

A. H. Muqaibel., N. M. Iya, U. M. Johar
2012 Radioengineering  
Results from such work provide insight on how to develop algorithms for effective target position estimation in imaging and localization applications.  ...  Due to their low frequency contents, ultra wideband (UWB) signals have the ability to penetrate walls and obstacles.  ...  Results obtained show a good level of wall compensation for the different walls used. Based on energy capture, results obtained show a good level of wall compensation for the different walls used.  ... 
doaj:9f0e37bdc9da4327b56c47e6af7c6693 fatcat:qgcrcp7ks5cx5dr7ltalfv3rky

A Survey on the Low-Dimensional-Model-based Electromagnetic Imaging

Lianlin Li, Martin Hurtado, Feng Xu, Bing Chen Zhang, Tian Jin, Tie Jun Cui, Marija Nikolic Stevanovic, Arye Nehorai
2018 Foundations and Trends® in Signal Processing  
Through-the-wall radar imaging. CRC Press. [8] Full text available at: http://dx.doi.org/10.1561/2000000103  ...  Conventional SP Model-based SP Data input Measurements Measurements plus prior knowledge Math.  ... 
doi:10.1561/2000000103 fatcat:xbxreie4dvbsdldobt5kp5gou4

BEAM-PATTERN ANALYSIS OF MULTI-BEAM HIGH PEAK POWER IR-UWB TRANSMITTER TAG FOR INDOOR POSITIONING AND TRACKING SYSTEM

Md Arif Hussain Ansari, Choi Look Law
2020 Progress in Electromagnetics Research B  
Consequently, an intensity table for the Gaussian-modulated multi-cycle IR-UWB beamforming array is proposed.  ...  In this paper, the beam-pattern analysis of an electronically steerable multibeam impulse radio ultra-wideband (IR-UWB) transmitter tag is presented and demonstrated.  ...  This research was partially supported by the ST Engineering -NTU Corporate Lab through the NRF Corporate Laboratory@University scheme (Project Reference C-RP10B).  ... 
doi:10.2528/pierb19080805 fatcat:nqvdhwcaunf4pcf6tmioa2ejrm

Performance Analysis of Compressive-Sensing-Based Through-the-Wall Imaging with Effect of Unknown Parameters

Muhammed Duman, Ali Cafer Gurbuz
2012 International Journal of Antennas and Propagation  
Compressive sensing (CS) has been shown to be a useful tool for subsurface or through-the-wall imaging (TWI) using ground penetrating radar (GPR).  ...  In addition current CS-based imaging methods are based on two basic assumptions; targets are point like and positioned at only discrete grid locations and wall thickness and its dielectric constant are  ...  Hence CS-based imaging seems to be highly dependent on close estimation of the unknown parameters.  ... 
doi:10.1155/2012/405145 fatcat:c4pgkpnv6rd7pldfcex7lexluu

Micrometer Sensing With Microwaves: Precise Radar Systems for Innovative Measurement Applications

Fabian Michler, Benedict Scheiner, Torsten Reissland, Robert Weigel, Alexander Koelpin
2021 IEEE Journal of Microwaves  
Radar sensors have been widely used to estimate speed and displacement of remote targets.  ...  INDEX TERMS Radar theory, radar remote sensing, Doppler radar, radar applications. This work is licensed under a Creative Commons Attribution 4.0 License.  ...  ULTRA-WIDEBAND RADAR (UWB) In contrast to the mentioned CW radar architectures, ultrawideband (UWB) radars use short pulses as transmit signals.  ... 
doi:10.1109/jmw.2020.3034988 fatcat:u2krllrqordk3oftvie7c5c7di

A Prototype System for Measuring Microwave Frequency Reflections from the Breast

J. Bourqui, J. M. Sill, E. C. Fear
2012 International Journal of Biomedical Imaging  
Microwave imaging of the breast is of interest for monitoring breast health, and approaches to active microwave imaging include tomography and radar-based methods.  ...  In this paper, a prototype system for monostatic radar-based imaging that has been used in an initial study measuring reflections from volunteers is discussed.  ...  In this paper, we describe a prototype system that is based on a monostatic radar approach and has been termed the TSAR (tissue sensing adaptive radar) method.  ... 
doi:10.1155/2012/851234 pmid:22611372 pmcid:PMC3348648 fatcat:d5jkh4ksevfjxfamovbgkfmlja

HaLoS – Integrated RF-Hardware Components for Ultra-Wideband Localization and Sensing [chapter]

Stefan Heinen, Ralf Wunderlich, Markus Robens, Jurgen Sachs, Martin Kmec, Robert Weigel, Thomas Umuller, Benjamin Sewiolo, Mohamed Hamouda, Rolf Kraemer, Johann-Christoph Scheytt, Yevgen Borokhovych
2013 Ultra-Wideband Radio Technologies for Communications, Localization and Sensor Applications  
Great care has to be taken to avoid the distortion of the signal shape through gain ripple and group delay variation.  ...  radar electronics into one silicon die.  ... 
doi:10.5772/54987 fatcat:htdlugglxzcxtjngilwtxlyjci

Technologies for ABs

Alessandro Vizzarri, Mazzenga Franco, Giuliano Romeo, Vegni Anna Maria
2022 Zenodo  
In the document a set of candidate communication technologies have been investigated as potential ones for railway applications.  ...  Radar diagram of LoRaWAN and NB-IoT main features.Figure73. Some successful HAPS vehicle shapes [92] . Figure74. HAPS working as base transceiver station. Figure75. HAPs as an Independent System.  ...  Radar diagram of LoRaWAN and NB-IoT main features.Figure73. Some successful HAPS vehicle shapes [92] . Figure74. HAPS working as base transceiver station. Figure75. HAPs as an Independent System.  ... 
doi:10.5281/zenodo.6288927 fatcat:zjth5wswjvge5plvjrhpqutpde

Computer and Information, Vol. 2, No. 3, August 2009, all in one file, Part B

CIS Editor
2009 Computer and Information Science  
or detecting, so the key technologies in the UWB radar technology are the synchronization technology and the channel estimation technology.  ...  Base on the important character of the wavelet transform, the synchronization process of the UWB radar system is to process the wavelet coefficient decomposed by the threshold form, and reconstruct the  ...  Conclusions Based on the grey half-generation algorithm, a sort of multi-key-pair generation scheme based on the RSA iterative encryption system is proposed in the article, and the scheme possesses following  ... 
doi:10.5539/cis.v2n3p0b fatcat:65e3fhlelfdzjay24x3z7dchzy

Leveraging an Open Source VPN Technology to End User

Farok Azmat, Md Ikhwan Hamdan, Hj. Kamaruzaman Jusoff
2009 Computer and Information Science  
or detecting, so the key technologies in the UWB radar technology are the synchronization technology and the channel estimation technology.  ...  Base on the important character of the wavelet transform, the synchronization process of the UWB radar system is to process the wavelet coefficient decomposed by the threshold form, and reconstruct the  ...  Conclusions Based on the grey half-generation algorithm, a sort of multi-key-pair generation scheme based on the RSA iterative encryption system is proposed in the article, and the scheme possesses following  ... 
doi:10.5539/cis.v2n3p97 fatcat:sbwmokolpfbo7prvczaasb54he

Matrix Pencil Method for Vital Sign Detection from Signals Acquired by Microwave Sensors

Somayyeh Chamaani, Alireza Akbarpour, Marko Helbig, Jürgen Sachs
2021 Sensors  
In addition to the GUARDIAN dataset, these methods are also applied to signals acquired by an ultra-wideband (UWB) sensor.  ...  Data Availability Statement: Data available on request. Conflicts of Interest: The authors declare no conflict of interest.  ...  This method is very sensitive to the shape of pulsation. The shape of pulsation varies based on many conditions, such as thorax effects, venous pulse effect, and signal processing method [50] .  ... 
doi:10.3390/s21175735 pmid:34502626 pmcid:PMC8434276 fatcat:ciomyzh2vvba3oshtb56wlyhpe

AN OVERVIEW OF MICROWAVE IMAGING FOR BREAST TUMOR DETECTION

Ria Benny, Thathamkulam A. Anjit, Palayyan Mythili
2020 Progress in Electromagnetics Research B  
After long years of intense research and clinical trials, a breast tumour monitoring unit based on MWI is finally entering clinical imaging scenarios.  ...  Over the last few decades, MWI has invited active research towards biomedical imaging, with special focus on breast tumor detection.  ...  The radar-based setup based on wave-migration algorithm added to patient comfort and avoided sanitation procedures after each imaging session.  ... 
doi:10.2528/pierb20012402 fatcat:ef7lqpd6efaevijxrxwgfmhbvy
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