初探阵列误差对矢量阵波束形成系统的影响.pdf

24 4 © Vol. 24 No. 4 2012 4 Journal of System Simulation Apr., 2012 1,2 1 1 1 1 150001 2 430064 TP391.9 A 1004-731X (2012) 04-0848-06 Exploratory Analysis to Influence of Array Errors on Vector-sensor Array Beam-forming System 1,2 1 1 1 LIU Kai , LIANG Guo-long , ZHANG Guang-pu , LIN Wang-sheng (1. National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China; 2. China Ship Development and Design Center, Wuhan 430064, China) Abstract: Array errors are important factors that restrict the performance of the vector-sensor array beam-forming system. On the basis of taking use of the “Generalized Euler Angle” from kinematics to describe the attitude error of the array elements, Gauss Perturbation Models of array errors were established. And then, the theoretical expression of real beam-response of the vector-sensor array was deduced. Moreover, the influence of every kind of random array error on the performance of the system was also analyzed in-depth, and some pieces of useful conclusions were obtained. Finally, the result of simulation experiment proves the legitimacy of theoretical analysis. Key words: vector-sensor array; random array errors; Generalized Euler Angle; beam response 1 [2-4] ( )