Topics In Mimo Radars
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Topics In Mimo Radars
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Author : Bo Li
language : en
Publisher:
Release Date : 2016
Topics In Mimo Radars written by Bo Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with MIMO systems categories.
Recently, multiple-input multiple-output (MIMO) radars have received considerable attention due to their superior resolution. A MIMO radar system lends itself to a networked implementation, which is very desirable in both military and civilian applications. In networked radars, the transmit and receive antennas are placed on wireless connected nodes, such as vehicles, ships, airplanes, or even backpacks. The transmit antennas transmit probing waveforms, which impinge on targets and are reflected back. A fusion center collects the target echo measurements of all receive antennas and jointly processes the signals to extract the desired target parameters. This dissertation proposes to address the following two bottleneck issues associated with networked radars. Reliable surveillance requires collection, communication and process of vast amounts of data. This is a power and bandwidth consuming task, which can be especially taxing in scenarios in which the antennas are on battery operated devices and are connected to the fusion center via a wireless link. Sparse sensing techniques are used to substantially reduce the amount of data that need to be communicated to a fusion center, while ensuring high target detection and estimation performance. In the first part, this dissertation derives the theoretical requirements and performance guarantees for the application of compressive sensing to both MIMO radar settings, namely, the collocated MIMO radars and the distributed MIMO radars. Confirming previous simulations based observations, the theoretical results of this thesis show that exploiting the sparsity of the target vector can reduce the amount of measurements needed for successful target estimation. For compressive sensing based distributed MIMO radars, we also propose two low-complexity signal recovery approaches. With the increasing demand of radio spectrum, the operating frequency bands of communication and radar systems often overlap, causing one system to exert interference to the other. Uncoordinated interference from communication systems may significantly harm the tactical radar functionality and vice versa. In the second part, this dissertation studies spectrum sharing between a MIMO communication system and a MIMO radar system in various scenarios. First, a cooperative spectrum sharing framework is proposed for the coexistence of MIMO radars and wireless communications. Radar transmit precoding and adaptive communication transmission are adopted, and are jointly designed to maximize signal-to-interference-plus-noise ratio (SINR) at the radar receiver subject to the communication system meeting certain rate and power constraints. Compared to the non-cooperative approaches in the literature, the proposed approach has the potential to improve the spectrum utilization because it introduces more degrees of freedom. In addition, the proposed spectrum sharing framework considers several practical issues which are not addressed in literature, e.g., the radar pulsed transmit pattern, targets falling in different range bins, and radar systems operating in the presence of clutter. Second, we investigate spectrum sharing between a MIMO communication system and a recently proposed sparse sensing based radar, namely the matrix completion based MIMO radar (MIMO-MC). MIMO-MC radar receivers take sub-Nyquist rate samples, and transfer them to a fusion center where the full data matrix is completed with high accuracy. MIMO-MC radars, in addition to reducing communication bandwidth and power as compared to MIMO radars, offer a significant advantage for spectrum sharing. The advantage stems from the way the sub-sampling scheme at the radar receivers modulates the interference channel from the communication system transmitters, rendering it symbol dependent and reducing its row space. This makes it easier for the communication system to design its waveforms in an adaptive fashion so that it minimizes the interference to the radar subject to meeting rate and power constraints. Two methods are investigated to minimize the effective interference power to the radar receiver: 1) design the communication transmit covariance matrix with fixed the radar sampling scheme, and 2) jointly design the communication transmit covariance matrix and the MIMO-MC radar sampling scheme. Furthermore, we investigate joint transmit precoding for the co-existence of a MIMO-MC radar and a MIMO wireless communication system in the presence of clutter. We show that the error performance of matrix completion in MIMO-MC radars is theoretically guaranteed when precoding is employed. The radar transmit precoder, the radar sub-sampling scheme, and the communication transmit covariance matrix are jointly designed to maximize the radar SINR while meeting certain communication rate and power constraints. Efficient optimization algorithms are provided along with insight on the proposed design problem.
Mimo Radar Signal Processing
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Author : Jian Li
language : en
Publisher: John Wiley & Sons
Release Date : 2008-10-10
Mimo Radar Signal Processing written by Jian Li and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-10-10 with Science categories.
The first book to present a systematic and coherent picture of MIMO radars Due to its potential to improve target detection and discrimination capability, Multiple-Input and Multiple-Output (MIMO) radar has generated significant attention and widespread interest in academia, industry, government labs, and funding agencies. This important new work fills the need for a comprehensive treatment of this emerging field. Edited and authored by leading researchers in the field of MIMO radar research, this book introduces recent developments in the area of MIMO radar to stimulate new concepts, theories, and applications of the topic, and to foster further cross-fertilization of ideas with MIMO communications. Topical coverage includes: Adaptive MIMO radar Beampattern analysis and optimization for MIMO radar MIMO radar for target detection, parameter estimation, tracking,association, and recognition MIMO radar prototypes and measurements Space-time codes for MIMO radar Statistical MIMO radar Waveform design for MIMO radar Written in an easy-to-follow tutorial style, MIMO Radar Signal Processing serves as an excellent course book for graduate students and a valuable reference for researchers in academia and industry.
Mimo Radar For Direction Estimation And Related Topics On Antennas And Microwave Circuits
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Author : Xuanhui Wu
language : en
Publisher:
Release Date : 2009
Mimo Radar For Direction Estimation And Related Topics On Antennas And Microwave Circuits written by Xuanhui Wu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Abstract: This dissertation studies the MIMO radar for direction estimation and several related topics on antennas and microwave circuits. MIMO radar is a recently proposed radar concept that adopts different baseband waveforms to excite different antenna elements. More freedom is provided by the so called waveform diversity, which improves the radar system performance. In this dissertation; a multiband MIMO radar is proposed which is able to exploit frequency diversity and waveform diversity simultaneously, and thus outperforms an existing singleband MIMO radar. The frequency diversity is obtained by applying OFDM technique which provides a solution to adopt wideband waveforms while keeping the waveform orthogonality that is required by a MIMO radar. The antenna's role in a MIMO radar for direction estimation is also investigated through a Cramèr-Rao Lower Bound analysis. This analysis is independent of an estimation algorithm, and gives the best possible estimation performance for a given antenna array. It is shown that the coupling between different antenna elements has great effects on the estimation performance. In addition a multiband MIMO radar is more stable in estimating a target since it averages the coupling effects at different frequencies. Considering the antenna for a radar system, a novel transmission line method is proposed to study the far zone radiation of an antenna under a multilayer structure. This kind of antennas could achieve high directivity if the multilayer structure is carefully designed, and are therefore suitable for long range radar applications. This method is derived based on the Reciprocity Theorem arid the far-field approximation. It transforms a radiation problem into a scattering problem that is mapped into a transmission line circuit thereafter. Also, inspired by the Hertzian dipole model that represents an excitation antenna in the transmission line method, a procedure of getting a wideband Hertzian dipole model is presented. This model can be used to efficiently investigate the radiation characteristics of an antenna mounted on a complex platform. Lastly, a hybrid method is proposed to design substrate integrated waveguide circuits that can be adopted as a low cost implementation of the microwave circuits in a radar.
Spectrum Sharing Between Radars And Communication Systems
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Author : Awais Khawar
language : en
Publisher: Springer
Release Date : 2017-06-12
Spectrum Sharing Between Radars And Communication Systems written by Awais Khawar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-12 with Technology & Engineering categories.
This book presents spectrum sharing efforts between cellular systems and radars. The book addresses coexistence algorithms for radar and communication systems. Topics include radar and cellular system models; spectrum sharing with small radar systems; spectrum sharing with large radar systems; radar spectrum sharing with coordinated multipoint systems (CoMP); and spectrum sharing with overlapped MIMO radars. The primary audience is the radar and wireless communication community, specifically people in industry, academia, and research whose focus is on spectrum sharing. The topics are of interest for both communication and signal processing technical groups. In addition, students can use MATLAB code to enhance their learning experience.
On Design Of Coherent Multiple Input Multiple Output Radars With Sparse Antenna Arrays
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Author : Andreas Josef Kirschner
language : en
Publisher:
Release Date : 2017-01-23
On Design Of Coherent Multiple Input Multiple Output Radars With Sparse Antenna Arrays written by Andreas Josef Kirschner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-23 with MIMO systems categories.
The multiple-input multiple-output (MIMO) principle is traditionally well-known from communication applications. During the last years, this term has also found its way into radar system theory, signal design and signal processing, resulting in a large variety of experiments and publications. This thesis covers especially two topics: coherent MIMO radars and arrays with minimum redundancy. A theoretical approach to combine both fields is demonstrated. Furthermore, possible errors and deviations in hardware implementations are faced and encountered successfully in order to apply the retrieved principles on real radar sensors.
Radar Networks
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Author : Hai Deng
language : en
Publisher: CRC Press
Release Date : 2020-06-09
Radar Networks written by Hai Deng and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-09 with Technology & Engineering categories.
Radar networks are increasingly regarded as an efficient approach to enhancing radar capabilities in the face of popular anti-radar techniques and hostile operating environments. Reader-friendly and self-contained, this book provides a comprehensive overview of the latest radar networking technologies. The text addresses basic, relevant aspects of radar signal processing and statistical theories, including both civilian and military radar applications. It also discusses emerging topics that directly relate to networks, such as multiple-input–multiple-output (MIMO) radars, waveform design, and diversity via multiple transmitters. Other topics covered include target recognition and imaging using radar networks. Features Gives a comprehensive view of the latest radar network technologies Covers both civilian and military applications of radar Provides basic statistics and signal processing necessary for understanding radar networks Includes up-to-date information on MIMO radars Presents waveform design and diversity for radar networks with multiple transmitters
Mimo Radar Theory And Application
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Author : Jamie Bergin
language : en
Publisher: Artech House
Release Date : 2018-03-31
Mimo Radar Theory And Application written by Jamie Bergin and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-31 with Technology & Engineering categories.
This comprehensive new resource provides in-depth and timely coverage of the underpinnings and latest advances of MIMO radar. This book provides a comprehensive introduction to MIMO radar and demonstrates it’s utility in real-world applications, then culminates with the latest advances in optimal and adaptive MIMO radar for enhanced detection and target ID in challenging environments. Signal processing prerequisites are explained, including radar signals, orthogonal waveforms, matched filtering, multi-channel beam forming, and Doppler processing. This book discusses MIMO radar signal model, antenna properties, system modeling and waveform alternatives. MIMO implantation challenges are covered, including computational complexity, adaptive clutter mitigation, calibration and equalization, and hardware constraints. Applications for GMTI radar, OTH radar, maritime radar, and automotive radar are explained. The book offers an introduction to optimum MIMO radar and includes details about detection, clutter, and target ID. Insight into adaptive MIMO radar and MIMO channel estimation is presented and techniques and illustrative examples are given. Readers find exclusive flight testing data from DARPA. The breadth of coverage in this all-inclusive resource makes it suitable for both practicing engineers and advanced researchers. The book concludes with discussions on areas for future research.
Mimo Radar
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Author : Jamie Bergin
language : en
Publisher: Artech House Publishers
Release Date : 2018
Mimo Radar written by Jamie Bergin and has been published by Artech House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with MIMO systems categories.
This comprehensive new resource provides in-depth and timely coverage of the underpinnings and latest advances of MIMO radar. This book provides a comprehensive introduction to MIMO radar and demonstrates it's utility in real-world applications, then culminates with the latest advances in optimal and adaptive MIMO radar for enhanced detection and target ID in challenging environments. Signal processing prerequisites are explained, including radar signals, orthogonal waveforms, matched filtering, multi-channel beam forming, and Doppler processing. This book discusses MIMO radar signal model, antenna properties, system modeling and waveform alternatives. MIMO implantation challenges are covered, including computational complexity, adaptive clutter mitigation, calibration and equalization, and hardware constraints.Applications for GMTI radar, OTH radar, maritime radar, and automotive radar are explained. The book offers an introduction to optimum MIMO radar and includes details about detection, clutter, and target ID. Insight into adaptive MIMO radar and MIMO channel estimation is presented and techniques and illustrative examples are given. Readers find exclusive flight testing data from DARPA. The breadth of coverage in this all-inclusive resource makes it suitable for both practicing engineers and advanced researchers. The book concludes with discussions on areas for future research.
Signal Detection And Estimation For Mimo Radar And Network Time Synchronization
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Author :
language : en
Publisher:
Release Date : 2016
Signal Detection And Estimation For Mimo Radar And Network Time Synchronization written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The theory of signal detection and estimation concerns the recovery of useful information from signals corrupted by random perturbations. This dissertation discusses the application of signal detection and estimation principles to two problems of significant practical interest: MIMO (multiple-input multiple output) radar, and time synchronization over packet switched networks. Under the first topic, we study the extension of several conventional radar analysis techniques to recently developed MIMO radars. Under the second topic, we develop new estimation techniques to improve the performance of widely used packet-based time synchronization algorithms.
Theory And Applications Of Mimo Radar
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Author : Guolong Cui
language : en
Publisher:
Release Date : 2024-02-26
Theory And Applications Of Mimo Radar written by Guolong Cui and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-26 with Science categories.
This Special Issue serves as a compendium of the most recent advancements in the field of multiple-input multiple-output (MIMO) radars, including a wide array of high-potential research domains. These areas span across both theoretical frameworks and practical applications. Its key focal points include MIMO radar waveform design, MIMO signal detection, parameter estimation and imaging, as well as MIMO clutter and jamming suppression techniques. The primary objective of this Special Issue is to stimulate the generation of innovative ideas while fostering enhanced communication and collaboration opportunities among students and researchers actively involved in the field of MIMO radar research.