基于多线程的惯导逻辑仿真器设计  

Design of Inertial Navigation Logic Simulator Based on Multi-thread

作　　者：张建东[1] 李意哲 刘洁凌[2] 

机构地区：[1]西北工业大学电子信息学院,西安710129 [2]西安北方光电科技防务有限公司,西安710043

出　　处：《计算机工程》2015年第4期277-283,共7页Computer Engineering

基　　金：航空科学基金资助项目(20135153031;20135553035;20125553032)

摘　　要：针对惯导系统在载机静止状态下无法提供动态参数的问题,对惯导子系统进行数字仿真。在航电系统仿真中,采用1553B总线与总线控制器和其他航电、非航电设备交联,通过以太网接收外部激励数据,采用多线程技术实现主备2个惯导并发运行,设计一种惯导逻辑仿真系统。阐述系统硬件结构和软件设计,建立惯导姿态仿真模型和位置仿真模型,实现惯导各种逻辑子过程。在某型飞机航电仿真系统中的联调证明,该仿真器能够准确接收外部激励源飞行信息、故障状态,经过结算后周期性地向总线控制器输出飞机位置数据、姿态数据等动态参数,执行某型飞机航电设计文档中相关惯导逻辑,并向总线控制器反馈惯导子系统状态。Inertia Navigation System（ INS） can not output dynamic data when plane is not moving. Simulation of INS can solve this problem. In the avionic system simulation,the inertial navigation logic simulator interconnects to bus controller and other avionic or non-avionic subsystem using 1553 B bus. It receives exterior incentive data through Ethernet. Using multi-thread can make main INS and backup INS operate respectively. The structure of hardw are and the design of softw are is expatiated. After establishing flight attitude model and navigation position model,the simulator can simulate different kinds of logic sub-process of INS. The test and debug of avionic simulation system proves that,this simulator can receive flight information and fault state from exterior incentive source by rule and line,send position data and pose data of the plane to bus controller periodically after resolving,execute INS logic in the avionic detail design document and send INS state to bus controller.

关 键 词：航电仿真 惯导系统 仿真模型 MIL-STD-1553B总线 以太网 多线程 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]