Study of pseudo noise CW diode laser for ranging applicationsA new Pseudo Random Noise (PN) modulated CW diode laser radar system is being developed for real time ranging of targets at both close and large distances (greater than 10 KM) to satisy a wide range of applications: from robotics to future space applications. Results from computer modeling and statistical analysis, along with some preliminary data obtained from a prototype system, are presented. The received signal is averaged for a short time to recover the target response function. It is found that even with uncooperative targets, based on the design parameters used (200-mW laser and 20-cm receiver), accurate ranging is possible up to about 15 KM, beyond which signal to noise ratio (SNR) becomes too small for real time analog detection.
Lee, Hyo S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ramaswami, Ravi (Science and Engineering Services, Inc. Burtonsville, MD, United States)
August 16, 2013
January 1, 1992
Publication: In: Cooperative intelligent robotics in space III; Proceedings of the Meeting, Boston, MA, Nov. 16-18, 1992 (A93-29101 10-54)