The core of PSI's innovative sensor technology is phase-measurement Lasar Radar (Ladar) developed with an unprecedented combination of precision, range, and sample rate to meet the demanding requirements of pavement testing from a test vehicle traveling at highway speeds. The static ranging precision is 20 microns (<0.001 inches) rms at a range of 2.1 meters (7 feet) and a sample rate of 1.25 MSPS