Obtaining precise position of interested emitters passively has wide applications in both civilian and military fields. Different from traditional parameter measurement and direct position determination (DPD) method, recently a new passive localization method based on synthetic aper-ture technique, named synthetic aperture positioning (SAP), has been proposed. The method com-pensates for the nonlinear phase produced by relative motion between the moving platform and the emitter, achieving coherent summation of intercepted signals. The SAP can obtain high-resolution and high-precision localization results at a low signal-to-noise ratio. This paper summarizes the research progress of SAP, including localization principles, spaceborne applications, and application scope analysis. Besides, the possible future outlook of SAP is considered.
National Key Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China
School of Communication and Information Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
National Key Laboratory of Radar Signal Processing, and the Academy of Advanced Interdisciplinary Research Department, Xidian University, Xi'an 710071, China
National Science Fund for Excellent Young Scholars国家自然科学基金stabilization support of National Radar Signal Processing Laboratory中央高校基本科研业务费专项
万方数据
维普
