Experimental evaluation of the performance of pulsed two-color laser-ranging systems

Kwaifong E. Im, James B. Abshire, Jan F. McGarry, Chester S. Gardner

Research output: Contribution to journalArticlepeer-review


Two-color laser-ranging systems can be used to estimate the atmospheric delay by measuring the difference in propagation times between two optical pulses transmitted at different wavelengths. The theoretical performance of a cross-correlation differential-timing estimator was analyzed in a recent paper. This paper describes horizontalpath ranging experiments that were conducted using flat diffuse targets and cube-corner reflector arrays. Measurements of the timing accuracy of the cross-correlation estimator, atmospheric delay, received pulse shapes, and signal power spectra are presented. The results are in general agreement with theory and indicate that target speckle can be the dominant noise source when the target is small and is located far from the ranging system or when the target consists of a small number of cube-corner reflectors.

Original languageEnglish (US)
Pages (from-to)820-833
Number of pages14
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number5
StatePublished - May 1 1987

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition


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