Under the Army's advanced discriminating LADAR technology (ADLT) program, Raytheon is developing a range-resolved, Doppler imaging LADAR sensor to enhance the ground-based midcourse defense segment's exoatmospheric kill vehicle with additional discrimination capability.
The ADLT LADAR system uses an ultrastable laser transmitter to interrogate targets much like a radar system. The reflected energy from targets is received and Doppler-processed to first gather range and velocity data and then create a range-resolved, Doppler image which yields the target's micromotions. This RRDI imagery can be made at very long ranges, much before camera-based systems can resolve the target.