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一、问题的提出:近代空空导弹的发展,要求红外导引头具有快速搜索和跟踪能力。这对老一代导引头说来,是无法实现的。原因是光学系统与陀螺转子是同轴安装的,而陀螺的阻抗作用,使高速进动成为不可能。再加上不可免的陀螺章动过程,破坏了正常的信号调制,使系统动态响应严重恶化。现根据有关资料,对伺服连接式系统作初略分析,并与同轴式比较,以示该系统独特之处。
First, the issue put forward: the development of modern air-to-air missiles, infrared seekers require fast search and tracking capabilities. This is an old generation seeker, it can not be achieved. The reason is that the optical system and the gyro rotor are mounted coaxially, and the gyro’s impedance effect makes high-speed precession impossible. Coupled with the inevitable gyro nutation process, undermined the normal signal modulation, the system dynamic response to a serious deterioration. Is based on the relevant information on the servo-connected system for a brief analysis, and compared with the coaxial, to show the system unique.