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However, conventional spatial spectrum methods heavily rely on a priori knowledge with a trial\u2010and\u2010error solution fashion, leading to a great challenge to estimate complete information in volatile scenarios. Inspired by the mechanism of the jumping spider (Salticidae), here a universal detection approach driven by an intelligent antenna array, with the usage of amplitude\u2010only information as inputs, is introduced. The applied machine learning method can process the received time\u2010varying signals in one single feed\u2010forward computation, bypassing a heavy recline on prior knowledge of the array structure. As a demonstration, a compact eight\u2010port antenna array is designed for simultaneous attainments of frequency, direction of arrival, and polarization, covering the entire microwave X band. Both the simulated and experimental results show that the average accuracies for the azimuth angle, elevation angle, and polarization are up to 98%, with a millisecond detection time. Different from conventional methods, the strategy herein does not involve a complex beamforming network and a time\u2010consuming trial\u2010and\u2010error solution fashion, allowing a big step toward a miniaturized, integrated, and cost\u2010effective detector.<\/jats:p><\/jats:sec>","DOI":"10.1002\/aisy.202100066","type":"journal-article","created":{"date-parts":[[2021,7,8]],"date-time":"2021-07-08T04:27:30Z","timestamp":1625718450000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Demonstration of Spider\u2010Eyes\u2010Like Intelligent Antennas for Dynamically Perceiving Incoming Waves"],"prefix":"10.1002","volume":"3","author":[{"given":"Zhedong","family":"Wang","sequence":"first","affiliation":[{"name":"Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering Zhejiang University  Hangzhou 310027 China"},{"name":"ZJU-Hangzhou Global Science and Technology Innovation Center, Key Lab of Advanced Micro\/Nano Electronic Devices &amp; Smart Systems of Zhejiang Zhejiang University  Hangzhou 310027 China"},{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]},{"given":"Chao","family":"Qian","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering Zhejiang University  Hangzhou 310027 China"},{"name":"ZJU-Hangzhou Global Science and Technology Innovation Center, Key Lab of Advanced Micro\/Nano Electronic Devices &amp; Smart Systems of Zhejiang Zhejiang University  Hangzhou 310027 China"},{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]},{"given":"Tong","family":"Cai","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering Zhejiang University  Hangzhou 310027 China"},{"name":"ZJU-Hangzhou Global Science and Technology Innovation Center, Key Lab of Advanced Micro\/Nano Electronic Devices &amp; Smart Systems of Zhejiang Zhejiang University  Hangzhou 310027 China"},{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]},{"given":"Longwei","family":"Tian","sequence":"additional","affiliation":[{"name":"Shanghai Key Laboratory of Navigation and Location-based Services Shanghai Jiao Tong University  Shanghai 200240 China"}]},{"given":"Zhixiang","family":"Fan","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering Zhejiang University  Hangzhou 310027 China"},{"name":"ZJU-Hangzhou Global Science and Technology Innovation Center, Key Lab of Advanced Micro\/Nano Electronic Devices &amp; Smart Systems of Zhejiang Zhejiang University  Hangzhou 310027 China"},{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]},{"given":"Jian","family":"Liu","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering Zhejiang University  Hangzhou 310027 China"},{"name":"ZJU-Hangzhou Global Science and Technology Innovation Center, Key Lab of Advanced Micro\/Nano Electronic Devices &amp; Smart Systems of Zhejiang Zhejiang University  Hangzhou 310027 China"},{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]},{"given":"Yichen","family":"Shen","sequence":"additional","affiliation":[{"name":"Lightelligence Inc.  Boston MA 02210 USA"}]},{"given":"Li","family":"Jing","sequence":"additional","affiliation":[{"name":"Department of Physics Massachusetts Institute of Technology  Cambridge MA 02139 USA"}]},{"given":"Jianming","family":"Jin","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign  Urbana IL 61801-2991 USA"}]},{"given":"Er-Ping","family":"Li","sequence":"additional","affiliation":[{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]},{"given":"Bin","family":"Zheng","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering Zhejiang University  Hangzhou 310027 China"},{"name":"ZJU-Hangzhou Global Science and Technology Innovation Center, Key Lab of Advanced Micro\/Nano Electronic Devices &amp; Smart Systems of Zhejiang Zhejiang University  Hangzhou 310027 China"},{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5735-9781","authenticated-orcid":false,"given":"Hongsheng","family":"Chen","sequence":"additional","affiliation":[{"name":"Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering Zhejiang University  Hangzhou 310027 China"},{"name":"ZJU-Hangzhou Global Science and Technology Innovation Center, Key Lab of Advanced Micro\/Nano Electronic Devices &amp; Smart Systems of Zhejiang Zhejiang University  Hangzhou 310027 China"},{"name":"International Joint Innovation Center ZJU, UIUC Institute Zhejiang University  Haining 314400 China"}]}],"member":"311","published-online":{"date-parts":[[2021,7,8]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2014.09.029"},{"key":"e_1_2_10_3_1","volume-title":"An Introduction to Clinical Perimetry","author":"Traquair H. 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