电光与控制, 2011, 18 (9): 73, 网络出版: 2011-09-09
去偏转换量测Kalman滤波器的FPGA实现
De-Biased Converted Measurement Kalman Filter Realized with FPGA
超近程主动防护 去偏转换量测Kalman滤波 浮点运算 实时性 short-range active defense system DCMKF FPGA FPGA floating-point arithmetic real-time
摘要
去偏转换量测卡尔曼滤波在雷达目标跟踪系统中有着广泛的应用,针对某型超近程主动防护系统的研制与开发,设计了基于现场可编程门阵列的去偏转换量测卡尔曼滤波器。针对超近程主动防护系统的高精度和实时性的要求,该设计采用结构化设计思想,利用现场可编程门阵列实现浮点去偏转换量测卡尔曼滤波器的设计。在保证实时性的前提下,在模块内部对运算单元分时复用,解决了采用传统的软件方法实现过程中存在的并行性和速度问题,并且保证了运算的精度。通过Matlab和QuartusⅡ仿真,验证了本设计的优越性。
Abstract
The De-biased Converted Measurement Kalman Filter (DCMKF) has found a wide application in radar target tracking system.A DCMKF was designed based on Field Programmable Gate Array (FPGA) according to the research and development of a certain type of short-range active defense system.With regard to high-precision and real-time performance demanded by the short-range active system, the structuralization idea was adopted to realize floating-point DCMKF by FPGA.On the condition that the real-time performance was guaranteed, time division multiplexing was used for arithmetic element within modules, which could not only guarantee the precision of calculation but also solve the problems of parallelism and speed in traditional software implementation.Simulations of Matlab and QuartusⅡ proved the effectiveness of the design.
王宝宝, 吴盘龙, 杨宝建, 蔡亚东. 去偏转换量测Kalman滤波器的FPGA实现[J]. 电光与控制, 2011, 18(9): 73. WANG Baobao, WU Panlong, YANG Baojian, CAI Yadong. De-Biased Converted Measurement Kalman Filter Realized with FPGA[J]. Electronics Optics & Control, 2011, 18(9): 73.