弹载GPS弹道测量系统的设计

通过对GPS在弹道测量中特点和要求的分析,以及对弹载GPS接收机测量系统和弹载GPS转发器测量系统2种弹载GPS的定位模式的讨论,选择弹载GPS转发器方式、采用差分定位方案构造了炮弹弹载GPS弹道测量系统.该系统的弹上部分由GPS OEM板、以DSP为中心的控制器、MODEN、收发信机、RAM和串行接口组成.地面基准站的功能是接收弹载GPS播发的信息,解算并显示飞行器的位置、速度,同时可给飞行器发出控制指令.弹上软件包括OEM板的初始化模块、数据处理模块、数据编码模块等.地面软件包括数据采集模块、星历计算模块、差分处理模块、飞行轨迹回放模块等.

The Design of Ballistic Measure System Based on the GPS Fixed on shell

The characteristic and requirements of GPS used in ballistic measure was analyzed, the measure systems of receiver and transmitter and orientated modes of the GPS fixed on shell were discussed. The measure system of GPS fixed on shell was designed with difference numeration project, the emanant mode of transmitter of GPS fixed on shell was selected. The shell part of the system consists of GPS OEM, GPS-based controller, MODEN, receiver and transmitter, RAM and serial interface. The functions of ground workstation are that receives signals transmitted by GPS fixed on shell, computes and displayes the position and speed of shell, and sends control command to shell. The software for shell includes initialization module of OEM board, data processing module and data coding module. The software for ground workstation make up of data acquisition module, computing time module, difference computing module and module for flight track.