3现代火箭控制系统的两种典型方案3.1平台/计算机控制系统3.1.1系统结构在发射低轨道航天器(5~8t)和高轨道地球同步卫星(1~4t)时,运载火箭常采用平台/计算机控制系统方案。箭体运动参数测量采用三框架或四框架惯性平台,输出箭体质心在发射点惯性坐标系(以下简称定系)的三个视加速度量w_x,w_y,w_z。输出箭体坐标 3 Two Typical Solutions for Modern Rocket Control System 3.1 Platform / Computer Control System 3.1.1 System Structure Launch vehicles often use platforms when launching low-orbit spacecraft (5 ~ 8t) and high-orbit geosynchronous satellite (1 ~ 4t) / Computer control system program. The three-frame or four-frame inertial platform is used to measure the movement parameters of the rocket body, and the three apparent acceleration quantities w_x, w_y and w_z of the center of mass of the arrow body at the launch point inertial coordinate system (hereinafter referred to as the fixed system) are output. Output the arrow coordinate