作者： Tianyuan Sun;Yizhuang Xie;Bingyi Li （Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology）

出处： The Journal of Engineering 2019 Vol.2019 No.21 P7775-7778

关键词： radar imaging;synthetic aperture radar;dram chips;efficiency balanced matrix transpose method;spotlight sar imaging processing;matrix transposition;critical operation;synthetic aperture radar imaging systems;improved corner;memory solution;real-time sar imaging processing;sub-matrix three-dimensional mapping method;matrix transposing;novel sar imaging mode;raw data;joint address mapping strategy;double data rate 3 synchronous dynamic random-access memory;two-dimensional access efficiency;spotlight mode sar imaging processing

摘要： Matrix transposition is a very critical operation in synthetic aperture radar (SAR) imaging systems. This study presents an improved corner turning me ...

作者： Yiheng Song;Yanhua Wang;Yang Li （Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology）

出处： The Journal of Engineering 2019 Vol.2019 No.20 P6699-6702

关键词： learning (artificial intelligence);radar computing;data handling;neural nets;deep generative network;radar applications;calculation speed;model error;electromagnetic simulation;radar data simulation method;dgn;generative model;labelled data;data samples;ground-based radar dataset;generated radar data;training radar data

摘要： Due to the high cost of real experiments, radar data simulation plays an important role in radar applications. However, the accuracy and the calculati ...

作者： Lei Chen;Liang Chen;BingY Li （Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology Radar Research Lab, School of Information and Electronics, Beijing Institute of Technology）

出处： The Journal of Engineering 2019 Vol.2019 No.20 P6848-6851

关键词： radar imaging;field programmable gate arrays;polynomials;matrix inversion;interpolation;synthetic aperture radar;lagrange interpolation polynomial;field-programmable gate array;u matrix calculation module;fast inverse realisation method;π′ vector calculation module;rapid inversion method;post-processing module;v matrix calculation module;fast inversion;vandermonde matrix inversion calculation;complex sar imaging systems;accurate vandermonde matrix inversion algorithm;multichannel inverse filtering;vandermonde matrix inversion operation;sar imaging technology;real-time performance;synthetic aperture radar imaging systems;fpga

摘要： With the rapid development of science and technology, the operation and calculation in synthetic aperture radar (SAR) imaging systems require high thr ...

作者： Di Xiong;Junling Wang;Lizhi Zhao;Meiguo Gao （School of Information and Electronics, Beijing Institute of technology School of Information and Electronics, Beijing Institute of technology School of Information Engineering, Minzu University of China School of Information and Electronics, Beijing Institute of technology）

出处： The Journal of Engineering 2019 Vol.2019 No.19 P6039-6042

关键词： Bayes methods;radar imaging;image resolution;image fusion;synthetic aperture radar;learning (artificial intelligence);BSBL-based multiband fusion ISAR imaging;multiband fusion imaging;range resolution;inverse synthetic aperture radar imaging;block sparse Bayesian learning method;high-resolution ISAR imaging;block-structured target;BSBL method;block structure characteristics

摘要： Multiband fusion imaging can effectively improve the range resolution of inverse synthetic aperture radar (ISAR) imaging. In this study, the block spa ...

作者： 郭海超，单涛，李立，张立，李小军，高寒 （School of Information and Electronics，Beijing Institute of Technology，Beijing 100081，ChinaNational Key Laboratory of Science and Technology on Space Microwave，Xi’an 710100，ChinaChina Academy of Space Technology (Xi’an)，Xi’an 710100，China；School of Information and Electronics，Beijing Institute of Technology，Beijing 100081，China；China Academy of Space Technology (Xi’an)，Xi’an 710100，China；China Academy of Space Technology (Xi’an)，Xi’an 710100，China；China Academy of Space Technology (Xi’an)，Xi’an 710100，China；Aerospace Information Research Institute，Chinese Academy of Sciences，Beijing 100094，China）

出处： Chinese Optics Letters 2019 第17卷 第12期 P25-30

关键词： red；Sr；A；reliable；sunlight；communication；system

摘要： A sunlight communication system is proposed that uses Sr 2 Si 5 N 8: Eu 2+ phosphors to concentrate sunlight signals in strong background light noise ...

作者： Jing Chen;Xiangrong Liu;Changjiang Liu;Xichao Dong （School of Information and Electronics, Beijing Institute of Technology National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics School of Information and Electronics, Beijing Institute of Technology School of Information and Electronics, Beijing Institute of Technology）

出处： The Journal of Engineering 2019 Vol.2019 No.19 P5524-5528

关键词： echo;target tracking;electromagnetic wave scattering;signal processing;traditional ground-target forward scattering signal model;air-target echoes;target scattering characteristics;echo characteristics;theoretical investigations;simulation investigations;forward scattering echoes;complex forward scattering coefficient model;near-field echo phase;far-field forward scattering;near-field forward scattering;near-field echo amplitude;signal processing algorithms;periodical fluctuation

摘要： In this study, modelling and characteristics analysis of forward scattering coefficients and echoes are investigated. Traditional ground-target forwar ...

作者： Zhanze Wang;Yuze Sun;Shuai Li;Xiaopeng Yang （School of Information and Electronics, Beijing Institute of Technology Department of Electronic Engineering, Tsinghua University School of Information and Electronics, Beijing Institute of Technology School of Information and Electronics, Beijing Institute of Technology）

出处： The Journal of Engineering 2019 Vol.2019 No.20 P6390-6393

关键词： interference suppression;covariance matrices;conformal antennas;antenna arrays;spatial spectrum;common conformal arrays;widened s;widening method;conformal array;covariance matrix enhancement

摘要： Conformal arrays are widely used in various aircrafts since they do not affect the aerodynamic performance of the carriers. When conformal arrays are ...

作者： Chang Cui;Xiangrong Liu;Xichao Dong;Cheng Hu;Yuanhao Li （School of Information and Electronics, Beijing Institute of Technology National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics School of Information and Electronics, Beijing Institute of Technology School of Information and Electronics, Beijing Institute of Technology School of Information and Electronics, Beijing Institute of Technology）

出处： The Journal of Engineering 2019 Vol.2019 No.19 P5529-5533

关键词： radar tracking;radar clutter;radar imaging;synthetic aperture radar;multiple-input multiple-output geosynchronous synthetic aperture radar;MIMO GEO SAR;mini-satellites;GEO orbits;satellite safety;satellite spacing;moving target defocusing;moving target echo;GEO SAR satellite-ground geometry relationship;target modelling;indication

摘要： Multiple-input multiple-output geosynchronous synthetic aperture radar (MIMO GEO SAR), composed by several mini-satellites in GEO orbits, has more spa ...

作者： Cheng Hu;Siwei Li;Rui Wang;Kai Cui;Dongli Wu;Shuqing Ma （School of Information and Electronics, Beijing Institute of Technology School of Information and Electronics, Beijing Institute of Technology School of Information and Electronics, Beijing Institute of Technology School of Information and Electronics, Beijing Institute of Technology Observation Centre of China Meteorological Administration Observation Centre of China Meteorological Administration）

出处： The Journal of Engineering 2019 Vol.2019 No.20 P6541-6545

关键词： neural nets;biometrics (access control);image segmentation;meteorological radar;image classification;learning (artificial intelligence);feature extraction;weather radar datasets;region growing method;radar reflectivity;fully convolutional network;pixel-wise classification method;bird echoes;local insect;weather radar biological monitoring capability;biological echoes;deep convolutional neural networks;weather radar observation;animal migration pattern

摘要： The weather radar can operate in all weathers and all time, and has a large coverage area. Besides monitoring the weather, the weather radar can recei ...

作者： Ruiguo Huo;Weiming Tian;Hongyan Mei;Jingyang Wang （School of Information and Electronics, Beijing Institute of Technology, People\'s Republic of China School of Information and Electronics, Beijing Institute of Technology, People\'s Republic of China School of Information and Electronics, Beijing Institute of Technology, People\'s Republic of China School of Information and Electronics, Beijing Institute of Technology, People\'s Republic of China）

出处： The Journal of Engineering 2019 Vol.2019 No.19 P5901-5904

关键词： MIMO radar;radar imaging;compensation;channel estimation;radar transmitters;radar resolution;radar receivers;least squares approximations;inferior imaging performance;compensation method;MIMO imaging radar;multiple-input multiple-output radar;target detection;multiple observation channels;transmitters;orthogonal signal transmission;azimuth resolution enhancement;transmit array element structure;receive array element structure;multiple-channel amplitude error estimation;multiple-channel phase error estimation;constrained least square method;CLS method;point target characteristics

摘要： Multiple-input multiple-output (MIMO) radar plays a more and more important role in radar imaging, target detection, and other fields owing to its uni ...