The challenge of securing national borders, ports and harbors is increasingly dependent on stabilized, long-range, automated electro-optic surveillance systems. The demand for durable high-resolution electro-optic cameras has skyrocketed, and as a result, the requirements for azimuth and elevation positioning platforms, mounting single-spectrum or multispectral imagers, have become equally robust and demanding.
In the past three years, the performance of pan-and-tilt systems has evolved along with electro-optic systems. Although the architectural configuration of video security and surveillance systems has not changed much, the performance specifications for target detection and identification have increased. Typical commercial systems, for example, are wholly inadequate for homeland security. The desire for better range, repeatability and automatic repositioning, among other features, has created a demand for greater platform payload capacity, stability, accuracy, endurance and dynamic performance...

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