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Time Delay Estimation in radar system using Fuzzy Based Iterative Unscented Kalman Filter

Computer systems Science & Engineering 2023年第3期44卷 2569-2583页

作者： T.Jagadesh B.Sheela Rani Faculty of Electronics Engineering Sathyabama Institute of Science and TechnologyChennai600119India Department of ECE KPR Institute of Engineering and TechnologyCoimbatore641407India Sathyabama Institute of Science and Technology Chennai600119India

RSs(radar systems)identify and trace targets and are commonly employed in applications like air traffic control and remote *** are necessary for monitoring precise target *** of RSs are non-linear as the parameters TDEs(time delay Estimations)and Doppler shifts are computed on receipt of echoes where EKFs(Extended Kalman Filters)and UKFs(Unscented Kalman Filters)have not been examined for ***,certain times result in poor accuracies and SNRs(low signal to noise ratios)especially,while encountering complicated *** work proposes IUKFs(Iterated UKFs)to track onlinefilter performances while using optimization techniques to enhance *** use of cost functions can assist state corrections while lowering costs.A new parameter is optimized using MCEHOs(Mutation Chaotic Elephant Herding Optimizations)by linearly approximating system non-linearity where OIUKFs(Optimized Iterative UKFs)predict a target's unknown *** obtain optimal solutions theoretically,OIUKFs take less iteration,resulting in shorter execution *** proposed OIUKFs provide numerical approximations which are derivative-free *** evaluation results with estimators show better performances in terms of reduced NMSEs(Normalized Mean Square Errors),RMSEs(Root Mean Squared Errors),SNRs,variances,and better accuracies than current approaches.

关键词： radar system unscented kalmanfilter extended kalmanfilter optimized iterative unscented kalmanfilter mutation chaotic elephant herding optimization time delay estimation

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Development of High Density Surface Mount Assemblies for radar system

Development of High Density Surface Mount Assemblies for Rad...

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1996 CIE International Conference of radar(ICR’96)

作者： Yan Wei Qian Rong Jiang Hong Chen Wei Liang Peinang Nanjing Research Institute of Electronic Technology

＜正＞This paper presents the design principles of high density surface mount assemblies （HDSMA）for radar system with surface mount technology（SMT）,describes the key procedures（electronic design automation, manuf... 详细信息

ISBN: (纸本)0780329147

关键词： radar equipment surface mount technology circuit CAD automatic test equipment high density surface mount assemblies radar system surface mount technology SMT electronic design automation manufacture computer-aided test

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A Hybrid Modified Sine Cosine Algorithm Using Inverse Filtering and Clipping Methods for Low Autocorrelation Binary Sequences

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Computers, Materials & Continua 2022年第5期71卷 3533-3556页

作者： Siti Julia Rosli Hasliza A Rahim Khairul Najmy Abdul Rani Ruzelita Ngadiran Wan Azani Mustafa Muzammil Jusoh Mohd Najib Mohd Yasin Thennarasan Sabapathy Mohamedfareq Abdulmalek Wan Suryani Firuz Wan Ariffin Ahmed Alkhayyat Advanced Communication Engineering Centre of Excellence(ACE)Universiti Malaysia Perlis(UniMAP)01000 KangarPerlisMalaysia Faculty of Electronic Engineering Technology Universiti Malaysia Perlis(UniMAP)02600 ArauPerlisMalaysia Advanced Computing(AdvCOMP) Centre of ExcellenceUniversiti Malaysia Perlis(UniMAP)02600 ArauPerlisMalaysia Faculty of Electrical Engineering Technology Universiti Malaysia Perlis(UniMAP)02600 ArauPerlisMalaysia Faculty of Engineering and Information Science University of Wollongong in DubaiDubai 20183United Arab Emirates Department of Computer Technical Engineering College of Technical Engineeringthe Islamic University54001 NajafIraq

The essential purpose of radar is to detect a target of interest and provide information concerning the target’s location,motion,size,and other *** knowledge about the pulse trains’properties shows that a class of signals is mainly well suited to digital processing of increasing practical importance.A low autocorrelation binary sequence(LABS)is a complex combinatorial *** main problems of LABS are low Merit Factor(MF)and shorter length ***,the maximum possible MF equals 12.3248 as infinity length is unable to be ***,this study implemented two techniques to propose a new metaheuristic algorithm based on Hybrid Modified Sine Cosine Algorithm with Cuckoo Search Algorithm(HMSCACSA)using Inverse Filtering(IF)and clipping method to achieve better *** proposed algorithms,LABS-IF and HMSCACSA-IF,achieved better results with two large MFs equal to 12.12 and 12.6678 for lengths 231 and 237,respectively,where the optimal solutions belong to the skew-symmetric *** MF outperformed up to 24.335%and 2.708%against the state-of-the-art LABS heuristic algorithm,xLastovka,and Golay,*** results indicated that the proposed algorithm’s simulation had quality solutions in terms of fast convergence curve with better optimal means,and standard deviation.

关键词： Merit factor autocorrelation skew-symmetric sequences combinatorial optimization sine cosine algorithm cuckoo search algorithm radar system wearable antenna antenna and propagation

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Doppler radar by using single multicarrier pulse based on optical fibre delay lines

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Journal of systems Engineering and Electronics 2010年第3期21卷 404-407页

作者： Junqi Duan Zishu He National Information Control Laboratory Chengdu 610036 P. R. China Department of Electronic Engineering University of Electronic Science and Technology of China Chengdu 610054 P. R. China

The proposed Doppler measurement technique shows that the Doppler measurements can be accomplished by a single pulse with multiple frequency components through optical fibre delay *** and velocity ambiguity can be removed,and the velocity resolution can be improved dramatically by using long optical fibre delay ***,the velocity resolution can be modified by adjusting the length of optical fibre delay *** addition,the proposed radar can achieve high range resolution by using a single wideband *** a result,the new approach can improve radar performance significantly.

关键词： Doppler radar matched filters optical delay lines radar signal processing radar system velocity measurement.

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Envelope Simulation by MATLAB-Compatible Models of a SAR system

Envelope Simulation by MATLAB-Compatible Models of a SAR sys...

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2009 2nd Asian-Pacific Conference on Synthetic Aperture radar（APSAR2009）

作者： Xiaoyang Jiang 1 2 Yunhua Zhang 1 1Center for Space Science and Applied Research CAS Beijing China 100190 2Graduate School of the Chinese Academy of Sciences Beijing China 100039

Fast and accurate system behavior simulation is an important technique for developing advanced radar system,Envelope simulation has been proved to be an efficient tool for analyzing and simulating narrow bandwidth system,such as communication system and radar *** this work a common model for the envelope simulation of the transmitter and receiver of a SAR system is *** results validate the reliability and efficiency of the proposed simulation method.

关键词： envelope simulation narrow bandwidth signal radar system SAR

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