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The concept of efficient information is first introduced as the basis of a multi-missile cooperative structure in a nominal engagement situation. The effective time of the efficient information, which can be regarded as an important parameter to indicate the ability of a missile to attack a given stationary target, is estimated by modifying the current time-to-go estimation method in the presence of a lateral acceleration constraint. Utilizing the effective time, a novel cooperative guidance law with better adaptiveness and robustness is proposed for multi-missile systems to realize the simultaneous attack. Finally, the effectiveness of the proposed cooperative guidance law is demonstrated via simulations.<\/jats:p>","DOI":"10.1177\/0142331218806961","type":"journal-article","created":{"date-parts":[[2018,10,25]],"date-time":"2018-10-25T16:18:32Z","timestamp":1540484312000},"page":"2651-2665","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Efficient information-based cooperative guidance law of multi-missiles"],"prefix":"10.1177","volume":"41","author":[{"given":"Guo","family":"Jianguo","sequence":"first","affiliation":[{"name":"Northwestern Polytechnical University, Institute of Precision Guidance and Control, Xi\u2019an, P.R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wang","family":"Xinming","sequence":"additional","affiliation":[{"name":"Northwestern Polytechnical University, Institute of Precision Guidance and Control, Xi\u2019an, P.R. 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