High accuracy LADAR scene projector calibration sensor development
2008
A sensor system for the characterization of infrared laser radar scene projectors has been developed. Available sensor
systems do not provide sufficient range resolution to evaluate the high precision LADAR projector systems developed
by the U.S. Army Research, Development and Engineering Command (RDECOM) Aviation and Missile Research,
Development and Engineering Center (AMRDEC). With timing precision capability to a fraction of a nanosecond, it
can confirm the accuracy of simulated return pulses from a nominal range of up to 6.5 km to a resolution of 4cm.
Increased range can be achieved through firmware reconfiguration. Two independent amplitude triggers measure both
rise and fall time providing a judgment of pulse shape and allowing estimation of the contained energy. Each return
channel can measure up to 32 returns per trigger characterizing each return pulse independently. Currently efforts
include extending the capability to 8 channels. This paper outlines the development, testing, capabilities and limitations
of this new sensor system.
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