Position estimation method for rotating part in Non-cooperation aerial target

Position estimation for rotating part in high resolution range profile is precondition for rotating part signal separation, when non-cooperation aerial target is observed by inverse synthetic aperture radar (ISAR). Position estimation methods for rotating part put forward in current literatures are not enough robust, when they are applied to real data. In this paper, based on formulation of high resolution range profile with rotating part, distribution characteristic of micro-motion component correspond to rotating part is analyzed at first, then position estimation method is put forward and ISAR real data is used to test the method. The processing result in real data shows effectiveness of the estimation method in this paper.