2020 IEEE International Radar Conference (RADAR)最新文献_第10页

Adaptive Subspace Mappings for Super-Resolving Multiple Main-Beam Targets in Jamming 超分辨多主波束目标干扰的自适应子空间映射

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114556

M. Fernández, K. Yu

引用次数: 1

Entangled coherent states for quantum radar applications 量子雷达应用中的纠缠相干态

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114592

M. Frasca, A. Farina

引用次数: 0

Sparse Range-Doppler Image Construction with Neural Networks 稀疏距离多普勒图像的神经网络构建

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114808

J. Akhtar

引用次数: 1

Impact of Adjacent/Overlapping Communication Waveform Design within a Radar Spectrum Sharing Context 雷达频谱共享环境下相邻/重叠通信波形设计的影响

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114739

J. Metcalf, Cenk Sahin, S. Blunt

引用次数: 8

Spectral Prediction and Notching of RF Emitters for Cognitive Radar Coexistence 认知雷达共存射频发射体的频谱预测与陷波

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114764

J. Kovarskiy, Jonathan Owen, R. Narayanan, S. Blunt, A. Martone, K. Sherbondy

{"title":"Spectral Prediction and Notching of RF Emitters for Cognitive Radar Coexistence","authors":"J. Kovarskiy, Jonathan Owen, R. Narayanan, S. Blunt, A. Martone, K. Sherbondy","doi":"10.1109/RADAR42522.2020.9114764","DOIUrl":"https://doi.org/10.1109/RADAR42522.2020.9114764","url":null,"abstract":"The increasing demand for radio frequency (RF) spectrum requires radars to coexist with interfering RF emitters. Innovations in waveform design paired with dynamic spectrum access techniques allow for efficient spectrum sharing for radar. This work evaluates a recently developed real-time implementation of spectrum sharing cognitive radar using commercial-of-the-shelf (COTS) hardware. Prediction of coexisting RF emitter frequencies informs the design of spectrally notched FM noise waveforms on transmit. Waveform notches are optimized on a pulse-to-pulse basis while accounting for the zero-order hold model inherent to lower fidelity digital-to-analog converters to ensure desired reconstruction. The radar system employs cognition to learn and predict RF emitter activity via a stochastic model-based approach. Initially, passive spectrum observations are used to estimate a stochastic model which is then exploited to predict the likelihood of future RF activity. The benefits and limitations of this sense-predict-and-notch (SPAN) approach are evaluated using a set of synthetic interference scenarios in real-time.","PeriodicalId":125006,"journal":{"name":"2020 IEEE International Radar Conference (RADAR)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126765950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Impedance Tuning with Notched Waveforms for Spectrum Sharing in Cognitive Radar 认知雷达频谱共享中的陷波阻抗调谐

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114694

Angelique Dockendorf, Austin Egbert, Adam Goad, Caleb Calabrese, B. Adkins, Brandon Ravenscroft, Jonathan Owen, C. Baylis, S. Blunt, A. Martone, K. Gallagher, R. Marks

{"title":"Impedance Tuning with Notched Waveforms for Spectrum Sharing in Cognitive Radar","authors":"Angelique Dockendorf, Austin Egbert, Adam Goad, Caleb Calabrese, B. Adkins, Brandon Ravenscroft, Jonathan Owen, C. Baylis, S. Blunt, A. Martone, K. Gallagher, R. Marks","doi":"10.1109/RADAR42522.2020.9114694","DOIUrl":"https://doi.org/10.1109/RADAR42522.2020.9114694","url":null,"abstract":"In a congested radio spectrum, radar systems must be capable of sharing spectrum in real time. Two possible radar transmission approaches involve either avoiding interferers or placing a notch in the sub-bands of interference. Impedance tuning allows the radar transmitter power amplifier to maximize its output power while adjusting its linearity to meet notch and/or out-of-band spectral requirements. In real-time spectrum sharing, the system controller decides whether to provide a waveform that notches around the interference or to avoid the interference altogether. Considerations in this decision include the maximum detection range obtainable from a tuned amplifier versus the finest achievable range resolution, based on transmitted bandwidth. This paper describes a comparison of real-time impedance tuning for notched, random FM waveforms versus a contiguous-band chirp used for avoidance. Comparisons are made between the range (calculated from output power) and the range resolution (calculated from bandwidth) obtained by the optimized circuits in these two cases.","PeriodicalId":125006,"journal":{"name":"2020 IEEE International Radar Conference (RADAR)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125949788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Radar Resource Allocation: Higher Rate or Better Measurements? 雷达资源分配:更高的速率还是更好的测量?

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114571

Y. Wang, W. Blair

{"title":"Radar Resource Allocation: Higher Rate or Better Measurements?","authors":"Y. Wang, W. Blair","doi":"10.1109/RADAR42522.2020.9114571","DOIUrl":"https://doi.org/10.1109/RADAR42522.2020.9114571","url":null,"abstract":"When tracking maneuvering targets and the need to improve the tracking arises or designing a sensor tracking system, one is often faced with the choice of increasing either the measurement accuracy or rate. The answer to this question is found by assessing the impact on error in the filtered state estimates and the one-step predicted state estimates. In this paper, the tracking of maneuvering targets with a nearly constant velocity (NCV) Kalman filter is considered and the maximum mean squared error (MMSE) in position and velocity are utilized to study the impacts of doubling the measurement accuracy or rate. For each measurement case and the maximum acceleration of a maneuvering target, the process noise variances that minimize the MMSE in the filtered and the one-step predicted track states are used to assess the impacts of doubling either the measurement accuracy or rate. The analysis shows that doubling the measurement accuracy gives a greater reduction in MMSE in filtered position and velocity, while doubling the measurement rate gives a greater reduction in the MMSE in the one-step predicted position and velocity. Process noise variances that minimize the MMSE in the one-step predicted position and velocity estimates are new in this paper.","PeriodicalId":125006,"journal":{"name":"2020 IEEE International Radar Conference (RADAR)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127490489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Propeller Modulation Analysis of 4-Blade, 4-Engine Aircraft in FM-band Multistatic Passive Radar 四桨叶四发动机飞机在fm波段多源无源雷达中的螺旋桨调制分析

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114672

F. Maasdorp, J. Cilliers, C. Tong

引用次数: 1

Hardware and Processing Architecture Impacts on Adaptive Beamforming in Digital Phased Arrays 硬件和处理结构对数字相控阵自适应波束形成的影响

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114657

P. Techau, Gary Boardley

{"title":"Hardware and Processing Architecture Impacts on Adaptive Beamforming in Digital Phased Arrays","authors":"P. Techau, Gary Boardley","doi":"10.1109/RADAR42522.2020.9114657","DOIUrl":"https://doi.org/10.1109/RADAR42522.2020.9114657","url":null,"abstract":"Typical approaches to receive digital beamforming (DBF) have used antenna array architectures wherein large numbers of elements are combined via fixed radio frequency (RF) manifolds into a small number of digital channels. These channels can then be used to adaptively cancel interference within limits pertaining to the number of digital channels relative to the number of interference sources and hardware considerations such as channel-pair cancellation ratio (CPCR). Emerging technologies promise new flexibility through array architectures that can potentially be digitized at or nearly at the element level. This enables the adaptation of the processing architecture to specific modes or functions and varying RF interference environments and the use of larger numbers of spatial degrees of freedom (DoFs) than has previously been practical. In this paper, we show the development of an ideal (ensemble average) covariance model for adaptive DBF that incorporates the effects of dispersion and channel mismatch and consider the impact of CPCR on ADBF performance in the context of channel and beamspace processing architectures.","PeriodicalId":125006,"journal":{"name":"2020 IEEE International Radar Conference (RADAR)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127192199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

KOSPAW Test bed—A Phased Array Radar for Space Situational Awareness 用于空间态势感知的相控阵雷达试验台

2020 IEEE International Radar Conference (RADAR) Pub Date : 2020-04-01 DOI: 10.1109/RADAR42522.2020.9114562

Jiwoong Yu, Sungki Cho, J. Jo

{"title":"KOSPAW Test bed—A Phased Array Radar for Space Situational Awareness","authors":"Jiwoong Yu, Sungki Cho, J. Jo","doi":"10.1109/RADAR42522.2020.9114562","DOIUrl":"https://doi.org/10.1109/RADAR42522.2020.9114562","url":null,"abstract":"Recently, the number of space objects has increased exponentially leading to a possibility of an increase in the number of space hazards; therefore, the Space Situational Awareness Program based on radars is currently being developed to counteract these events. The Korea Space Surveillance Active Phased Array Radar Window (KOSPAW) test bed is being developed to test radar technology in a phased array and detect radar cross section (RCS) of 5 m2 for space objects at an altitude of 750 km. The designed radar can effectively operate in tracking and searching modes. This paper describes the results of the operational test of a KOSPAW to verify the sensitivity of space objects in the characteristics of the satellite catalogs and relative range and velocity from the propagated orbits of the TLE. In this study, methods, such as increasing the number of arrays and the transmission power, to improve the number of space objects detected are proposed, and the number of predicted space objects is confirmed. In addition, design improvements are made and the operating modes are simulated. The KOSAPW test bed will be tested in 2023 by technically verifying the accessibility of its components.","PeriodicalId":125006,"journal":{"name":"2020 IEEE International Radar Conference (RADAR)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133141651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0