Broadband (Ultra Wideband) Sensor System and Signal Processing Techniques for Active and Passive Detection and Classification of Targets PDF Download
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Languages : en
Pages : 0
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Book Description
This report discusses a Broadband Bionic Sonar System and a signal processing technique for detection and identification of underwater targets. Since the sonar and radar target echoes are the solutions to the same Helmholtz Equation in their respective media, an Ultra Wideband Radar System can also be developed for target detection and identification base on the same principles and signal processing techniques. In the bionic sonar system with the resonance detection technique for detection and identification of underwater targets, it appears to mimic a dolphin's and/or a bat's acoustic sensory systems. It is conceivable that an Ultra-Wideband Radar System of the same detection technique can also be developed.
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Category :
Languages : en
Pages : 0
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Book Description
This report discusses a Broadband Bionic Sonar System and a signal processing technique for detection and identification of underwater targets. Since the sonar and radar target echoes are the solutions to the same Helmholtz Equation in their respective media, an Ultra Wideband Radar System can also be developed for target detection and identification base on the same principles and signal processing techniques. In the bionic sonar system with the resonance detection technique for detection and identification of underwater targets, it appears to mimic a dolphin's and/or a bat's acoustic sensory systems. It is conceivable that an Ultra-Wideband Radar System of the same detection technique can also be developed.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Book Description
This report discusses a Broadband Bionic Sonar System and a signal processing technique for detection and identification of underwater targets. Since the sonar and radar target echoes are the solutions to the same Helmholtz Equation in their respective media, an Ultra Wideband Radar System can also be developed for target detection and identification base on the same principles and signal processing techniques. In the bionic sonar system with the resonance detection technique for detection and identification of underwater targets, it appears to mimic a dolphin's and/or a bat's acoustic sensory systems. It is conceivable that an Ultra-Wideband Radar System of the same detection technique can also be developed.
Author: Fernando M. Puno
Publisher:
ISBN:
Category : Ground penetrating radar
Languages : en
Pages : 524
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309069254
Category : Technology & Engineering
Languages : en
Pages : 1018
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Network-Centric Naval Forces: A Transition Strategy for Enhancing Operational Capabilities is a study to advise the Department of the Navy regarding its transition strategy to achieve a network-centric naval force through technology application. This report discusses the technical underpinnings needed for a transition to networkcentric forces and capabilities.
Author: Jana Rov Akova
Publisher: LAP Lambert Academic Publishing
ISBN: 9783843360173
Category :
Languages : en
Pages : 144
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There are a number of situations where entering of a building is considered hazardous and it is desired to inspect its interior from outside through the walls. In these cases, ultra wideband (UWB) radars can provide significant help by detecting and tracking of people. The intent of presented thesis was to propose a procedure enabling through wall tracking of moving targets based on processing of UWB radar signals. For that purpose, at first the review and theoretical basis of the conventional methods has been elaborated. The main part of the work has dealt with design of the complete procedure as the set of robust signal processing methods convenient for a real-time processing. It consists of 7 phases, namely background subtraction, enhancement of weak signals, detection, trace estimation, wall effect compensation, localization and tracking. Within them a few novel methods have been introduced and together with chosen conventional methods implemented in the MATLAB programming environment. On the basis of it, the real performance of all considered methods has been demonstrated. The final section of the thesis presents experimental results achieved with the proposed procedure.
Author:
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ISBN:
Category : Electrical engineering
Languages : en
Pages : 1948
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Author: Brett D. Gronholz
Publisher:
ISBN: 9781423521990
Category : Signal detection
Languages : en
Pages : 140
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Techniques for the non-cooperative (non-matched filter) detection of impulse-like ultra wideband signals using channelized receiver architectures are developed and evaluated. Each technique considered is modeled and simulations conducted to characterize detection performance, the results of which are compared with the detection performance of three receivers: the matched filter receiver, which provides optimum detection performance in AWGN; the radiometer, or energy detector; and the multi-aperture cross correlation receiver. It is shown that a channelized receiver (with no downconversion) can provide approximately 2.5 dB improvement over the radiometer when performing detection using the temporal-temporal matrix (TTM). The TTM processing technique provides the best performance of all the proposed channelized receiver techniques. Detection with a downconverting channelized receiver is shown dependent on mixer phase value with performance variation generally minimized as the number of channels increases (channel bandwidth decreases).
Author: Yuxin Tian
Publisher:
ISBN:
Category :
Languages : en
Pages : 206
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Author: Hoi-Shun Lui
Publisher:
ISBN:
Category : Technology
Languages : en
Pages :
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Book Description
Reliable radar target recognition has long been the holy grail of electromagnetic sensors. Target recognition based on the singularity expansion method (SEM) uses a time-domain electromagnetic signature and has been well studied over the last few decades. The SEM describes the late time period of the transient target signature as a sum of damped exponentials with natural resonant frequencies (NRFs). The aspect-independent and purely target geometry and material-dependent nature of the NRF set make it an excellent feature set for target characterization. In this chapter, we aim to review the background and the state of the art of resonance-based target recognition. The theoretical framework of SEM is introduced, followed by signal processing techniques that retrieve the target-dependent NRFs embedded in the transient electromagnetic target signatures. The extinction pulse, a well-known target recognition technique, is discussed. This chapter covers recent developments in using a polarimetric signature for target recognition, as well as using NRFs for subsurface sensing applications. The chapter concludes with some highlights of the ongoing challenges in the field.
Author:
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ISBN:
Category :
Languages : en
Pages : 88
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Book Description
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
