电子学报Issue(3)：439-444,6.DOI:10.3969/j.issn.0372-2112.2014.03.004
雷达导引头斜投影抗质心干扰性能分析
Analysis of Anti Centroid Jamming Performance for the Radar Seeker Using Oblique Projection
摘要
Abstract
Target indicated angle of radar seeker biases off the target when the centroid jamming such as chaff cloud or cor-ner reflector presents ,which makes the missile miss the target .To address this problem ,oblique projection is employed to suppress the centroid jamming in this paper ,where oblique projection operator is constructed by utilizing the polarization parameters of the target and the jamming .Since the polarization parameters of the target and the jamming are difficult to be estimated accurately in re-ality ,influences of the estimation errors of the polarization parameters of the target and the jamming on the output target signal and jamming after oblique projection are mainly analyzed .Analytic expressions of output signal errors of the target and the jamming are presented .Based on this ,the output interference-to-signal ratio and angle measurement error after oblique projection are further de-rived .Theoretical derivation and simulation results both demonstrate that angle measurement error of radar seeker after oblique pro-jection is unrelated to the estimation error of the polarization parameters of the target ,and is related to the estimation error of the po-larization parameters for the jamming .Oblique projection can suppress the jamming to some extent and is good for enhancing the an-gle measurement accuracy of radar seeker if the estimation errors of the polarization parameters of the jamming are within the range of minus ten degree to ten degree .关键词
雷达导引头/抗干扰/质心干扰/斜投影/极化Key words
radar seeker/anti-jamming/centroid jamming/oblique projection/polarization分类
信息技术与安全科学引用本文复制引用
杨勇,肖顺平,冯德军,张文明..雷达导引头斜投影抗质心干扰性能分析[J].电子学报,2014,(3):439-444,6.基金项目
国家自然科学基金（No ．61372170）；国防科技大学优秀研究生创新资助项目（No ．B110406）；湖南省研究生科研创新项目 （）
