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平台系统数字化框架轴锁定回路设计
引用本文:闫光亚,王帆,韦玮,李洪伟.平台系统数字化框架轴锁定回路设计[J].导航与控制,2014(3):46-49.
作者姓名:闫光亚  王帆  韦玮  李洪伟
作者单位:北京航天控制仪器研究所;北京航天控制仪器研究所;北京航天控制仪器研究所;北京航天控制仪器研究所
摘    要:平台系统测试设备要求平台在不开盖条件下实现框架锁定,在对陀螺和加速度计进行多位置测试时,必须确保平台框架处于正交锁定状态。原平台系统锁定回路是由模拟电路搭建,不但存在框架抖动问题,而且只能利用机械锁进行框架锁定。针对上述缺陷,本文对原模拟锁定回路进行了数字化改进设计,利用DSP实现传感器信号滤波、控制算法及PWM波输出,再经过功率驱动后控制各框架轴力矩电机实现框架锁定。经仿真和试验验证,数字化锁定回路性能满足测试设备对锁定回路技术要求。

关 键 词:框架轴锁定回路  平台系统  数字化设计

Digital Frame Shaft Locking Loop Design for PINS
YAN Guang-y,WANG Fan,WEI Wei and LI Hong-wei.Digital Frame Shaft Locking Loop Design for PINS[J].Navigation and Control,2014(3):46-49.
Authors:YAN Guang-y  WANG Fan  WEI Wei and LI Hong-wei
Institution:Beijing Institute of Aerospace Control Device;Beijing Institute of Aerospace Control Device;Beijing Institute of Aerospace Control Device;Beijing Institute of Aerospace Control Device
Abstract:Testing equipment for Platform Inertial Navigation System (PINS) requires that frames are locked without opening the cover, and frames are in the orthogonal lock state simultaneously when gyro and accelerometer are tested in multi positions. In the before, the frame shaft locking loop was realized using analog circuit, and not only with frame jitter, but also through mechanical lock only. To solve these problems, this paper digitalized the analog locking loop, realized signal filtering, control algorithm, PWM wave output by DSP, and controlled each frame shaft torque motor to achieve frame lock through power drive. The results of simulation and experiments show that digital frame lock loop can satisfy all requirements.
Keywords:frame shaft locking loop  PINS  digital design
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