Algorithm Using BP Networks for Flush Airdata Sensing System

摘要：

The algorithm for flush airdata sensing system based on BP networks is studied. The concept of modified dynamic pressure coefficient is presented. And it is calculated from nonlinear equations using general inverse matrix. Then the mach number is worked out using BP networks. With the help of the concept of modified dynamic pressure ratio and the high nonlinear mapping ability of BP networks, the complexity of the algorithm is greatly reduced, and the algorithm is simple and easy to carry out and maintain. The numerical results indicate that the algorithm meets the requirements of the system on precision and reliability. As for real-time, the BP network needs only 10％ time to reach the same precision for calculating the mach number comparing to iteration algorithm.

关键词： Back Propagation flush airdata sensing system general inverse matrix mach number

作者: ZHENG Chengjun LU Yuping HE Zhen

作者单位: PLA Troop No. 92419, Xingcheng 125106, Liaoning, China College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 21001

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）