低空突防实时航迹规划计算机方案设计研究

地形跟踪/地形回避、威胁回避(TF/TA2)实时航迹规划计算机是综合TF/TA2低空突防系统的控制核心.系统按照由它产生的最优航迹产生制导指令,并控制飞行器按此最优航迹完成突防任务.本文提出了一种实时航迹规划计算机的设计方案.该方案采用由共享存储器耦合的三个智能模块(即智能总线接口、航迹规划处理机和数据处理机)并行运行的结构,以提高系统的运行速度,满足低空突防对航迹规划计算机的实时性要求.其中,航迹规划处理机和数据处理机的双机互备份降级运行方式提高了系统的可靠性.此外,以闪存为存储介质的内存数据库使系统检索和读取机载数据的速度大大提高,且闪存的非易失性保证了机载数据的可靠性.

Design of Flight Trajectory Planning Computer for Low Altitude Penetration System

The terrain following/terrain avoidance/threat avoidance (TF/TA 2) real-time flight trajectory planning computer is the core of the integrated TF/TA 2 low altitude penetration system. The system computes flight path control commands using the optimal TF/TA 2 flight path that is calculated by the trajectory-planning computer, and control the aircraft to success the penetration task. A designing schedule of the real-time flight trajectory-planning computer is presented. The computer is consisting of three intelligent modules; they are intelligent bus interface unit, flight trajectory-planning processor and data processor. Three modules are coupled by common memory and perform in parallel. This structure can improve the computer's speed and satisfy the real-time request of the low altitude penetration system. The flight trajectory-planning processor and the data processor are backup each other, so the computer's reliability is improved. In addition, because the airborne data base is stored in flash memory that is inviolate and random access, the speed of data retrieval and access is improved and the airborne data is reliable.