{"title":"百万元素ISIS数组","authors":"Tim Clark, E. Jaska","doi":"10.1109/ARRAY.2010.5613396","DOIUrl":null,"url":null,"abstract":"The DARPA ISIS Program is developing and demonstrating technologies to enable a stratospheric airship-based dual-band active-array radar system. The antenna is a UHF and X-band shared aperture with backend digital beamforming. ISIS achieves unprecedented airborne radar performance through use of a large antenna aperture instead of high transmit power. The low-power-density aperture has an areal mass density of only 2 kg/m2. A conceptual future system achieves 360° azimuth coverage using a cylindrical antenna of 36m height and 50.5m diameter. A small demonstration system scheduled for launch in 2013 has a UHF antenna cylinder 8m high and 22m in diameter. A 98m2 rectangular section of this cylinder is populated with active X-band elements. The dual-band array has total receive and overhead power consumption, including off-array components, of only 5W/m2.","PeriodicalId":125604,"journal":{"name":"2010 IEEE International Symposium on Phased Array Systems and Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"Million element ISIS array\",\"authors\":\"Tim Clark, E. Jaska\",\"doi\":\"10.1109/ARRAY.2010.5613396\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The DARPA ISIS Program is developing and demonstrating technologies to enable a stratospheric airship-based dual-band active-array radar system. The antenna is a UHF and X-band shared aperture with backend digital beamforming. ISIS achieves unprecedented airborne radar performance through use of a large antenna aperture instead of high transmit power. The low-power-density aperture has an areal mass density of only 2 kg/m2. A conceptual future system achieves 360° azimuth coverage using a cylindrical antenna of 36m height and 50.5m diameter. A small demonstration system scheduled for launch in 2013 has a UHF antenna cylinder 8m high and 22m in diameter. A 98m2 rectangular section of this cylinder is populated with active X-band elements. The dual-band array has total receive and overhead power consumption, including off-array components, of only 5W/m2.\",\"PeriodicalId\":125604,\"journal\":{\"name\":\"2010 IEEE International Symposium on Phased Array Systems and Technology\",\"volume\":\"18 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-10-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 IEEE International Symposium on Phased Array Systems and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ARRAY.2010.5613396\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 IEEE International Symposium on Phased Array Systems and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ARRAY.2010.5613396","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The DARPA ISIS Program is developing and demonstrating technologies to enable a stratospheric airship-based dual-band active-array radar system. The antenna is a UHF and X-band shared aperture with backend digital beamforming. ISIS achieves unprecedented airborne radar performance through use of a large antenna aperture instead of high transmit power. The low-power-density aperture has an areal mass density of only 2 kg/m2. A conceptual future system achieves 360° azimuth coverage using a cylindrical antenna of 36m height and 50.5m diameter. A small demonstration system scheduled for launch in 2013 has a UHF antenna cylinder 8m high and 22m in diameter. A 98m2 rectangular section of this cylinder is populated with active X-band elements. The dual-band array has total receive and overhead power consumption, including off-array components, of only 5W/m2.
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