第一章概述 1、目的和范围。 a、本程序运用于所有的被动式热寻向导弹,它装有具有如下使用和物理特性的导引头: (1)其捕获、锁定和跟踪热源的位标器部件为一旋转的光学系统,它构成一三自由度的陀螺仪。在本试验操作程序中,此部件叫作“陀螺”。 (2)陀螺轴在其限定范围内相对导弹纵轴可以自由运动。在本试验操作程序中,把此 Chapter I Overview 1, purpose and scope. a. This program applies to all passive heat seeker missiles, which incorporate seeker heads that have the following uses and physical characteristics: (1) The scalar component that captures, locks, and traps heat sources is a rotating optical system, It constitutes a three-degree-of-freedom gyroscope. In this test procedure, this part is called a “top.” (2) The gyro shaft is free to move relative to the longitudinal axis of the missile within its confined range. In this test procedure, take this