Light of sight stabilization requirements for target tracking systems

Meir Iecovich

doi:10.1117/12.2322202

1 September 1990 Light of sight stabilization requirements for target tracking systems

Meir Iecovich

Proceedings Volume 1304, Acquisition, Tracking, and Pointing IV; (1990) https://doi.org/10.1117/12.2322202
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

In Optical Target Tracking Systems (TTS) the problem of Line Of Sight (LOS) stabilization plays a key role in overall TTS performance. The Stabilization Mechanism is required to compensate for disturbances arising from various parts of the TTS These disturbances arise from the servomechanism, the electronics, the optics and the imaging parts of the TTS. While in every part of the TTS an effort is made to minimize these disturbances there still exists the need for the Closed Loop Stabilization. The Closed Loop Stabilization (CLS) is implemented in various structures. It can be implemented using either Inertial Devices, such as Rate Gyros or by the use of optical methods In each case, the goal of the design is to compensate dynamically for any LOS error. The method of LOS error measurement can vary depending on system requirements and budget. The CLS design is dependent on the overall TTS performance parameters. The parameters of the TTS that influence the Stabilization Loop Structure are : pointing accuracy, target acceleration, target velocity and target maneuvering. Once system performance is presented in the frequency domain, it is possible to deal with the preferred architecture of the system. This results in a particular loop structure: the Stabilization loop being an inner loop of the pointing loop. After the Stabilization Loop location in the TTS is decided, the design parameters of the Stabilization loop are derived.

Citation Download Citation

Meir Iecovich "Light of sight stabilization requirements for target tracking systems", Proc. SPIE 1304, Acquisition, Tracking, and Pointing IV, (1 September 1990); https://doi.org/10.1117/12.2322202

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KEYWORDS

Servomechanisms

Electronics

Cameras

Sensors

Signal attenuation

Line of sight stabilization

Linear filtering

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