基于ARM的轰炸光电瞄准控制与实现

Control and Realization of Bombing Electro-Optic Targeting Based on ARM

轰炸光电瞄准系统结构复杂,瞄准过程产生数据量大、信号形式多样,难以控制。介绍了一种以ARM9系列AT91SAM9261为处理器、VxWorks为操作系统的轰炸光电瞄准控制方案,实现了瞄准过程控制。针对控制系统要求,设计了主控板块,主控板块与其他功能板块之间通过底板VME总线实现通信,FPGA器件实现VME总线时序,设计了VME总线与机载总线之间的通信电路。分析得出了轰炸光电瞄准数学模型,在此基础上确定了软件算法,同时简要介绍了操作系统、驱动程序、FPGA程序开发。实际应用结果表示,本系统能够控制指引激光制导炸弹和自动精确投放常规炸弹。

The structure of bombing electro-optic targeting system is complicated, and the targeting process is difficult to control with large amount of data and variety forms of signals. A bombing electro-optic targeting con- trolling project based on AT91SAM9261 CPU and VxWorks operating system is introduced, which is able to control the targeting process. To meet the requirements of the controlling system, the host segment is designed, and the communication between the master plate and other functional blocks is realized through backplane VME bus, VME bus timing is achieved through FPGA programming, communication circuits between VME bus and airborne bus are designed. The bombing electro-optic targeting mathematical model is analyzed and com- pleted, based on which the software algorithm is achieved. Simultaneously, the developing methods of operating system, drivers, FPGA application are introduced briefly. Actual results show the system is able to control laser- guided bombs and the automatic and precise casting of conventional bombs.