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Analysis, measurement, and compensation of mechanical errors of IR systems mounted on a five-axis motion table

机译：安装在五轴运动表上的IR系统的机械误差的分析，测量和补偿

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LFK-Lenkflugkoerpersysteme GmbH develops missile systems for a wide field of military purposes. The Hardware-in-the-Loop (HWIL) facility of LFK in Unterschleissheim uses a five axis motion simulation table and an IR scene projection system. The system is designed for test and evaluation of several missile programs due to the dimensions of the five axis table and it's dynamic performance /1/. In a certain cruise missile program there was the need for system tests with nearly all components of the missile as well as special investigations and validation trials for the subsystem consisting of the IR-seeker and the image processing computer. The components had also to pass their qualification tests with the assistance of the HWIL team. These tests and their analysis are focussed to the mechanical accuracy of the gimbals and resolvers of the IR seeker and the tracking accuracy of the image processing computer. Before starting tests in the HWIL it is absolutely necessary to identify errors caused by mechanical tolerances of the test equipment (e.g. mounting of the seeker and the IR projection system) on the five axis motion simulator. Otherwise the obtained test results includes these errors and lead to incorrect system performance evaluation. There are different mechanical errors in mounting which can occur are analysed below. The main problem is caused by possible shifts of the IR-seeker in a plane perpendicular to the optical axis (with gimbals in zero position). Therefore a procedure has been developed using IR test images, a frame grabber and image processing routines to determine the mounting failures. These can be corrected by using mechanical adjustment tools designed and realised for this purpose.
机译：LFK-Lenkflugkoerpersysteme GmbH为广泛的军事目的开发导弹系统。 LFK在Unterschleissheim中的硬件循环（HWIL）设施使用五轴运动仿真表和IR场景投影系统。该系统是由于五轴表的尺寸和动态性能/ 1 / / 1 /的测试和评估了几个导弹程序的测试和评估。在某种巡航导弹计划中，有必要具有导弹的几乎所有组成部分的系统测试以及由IR导师和图像处理计算机组成的子系统的特殊调查和验证试验。该组成部分还将在HWIL团队的帮助下通过其资格测试。这些测试及其分析集中于IR寻求者的万向节和拆分器的机械精度以及图像处理计算机的跟踪精度。在从HWIL开始测试之前，绝对有必要识别由测试设备的机械公差（例如导向器和IR投影系统的机械公差引起的误差在五轴运动模拟器上。否则所获得的测试结果包括这些错误并导致系统性能评估不正确。在下面分析可能发生的安装时存在不同的机械误差。主要问题是由IR导向器在垂直于光轴的平面中的可能移位引起的（带有零位置的万向节）。因此，使用IR测试图像，帧抓取器和图像处理例程来开发过程以确定安装故障。可以通过使用为此目的设计和实现的机械调节工具来校正这些。

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