NASA NTRS · 19920021786
Altimetry and lidar using AlGaAs lasers modulated with pseudo-random codes
Abstract
We have demonstrated a prototype laser altimeter and lidar which uses a low power AlGaAs laser modulated with a pseudorandom noise (PN) code, a 20 cm diameter telescope, and a photon counting receiver. Measurements to tree canopies over a 400 m horizontal path show strong signals with 5.3 mW average power and a 6.4 msec averaging time. Computer simulations predict lidar performance for various types of scattering performance.
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Abshire, James B., Rall, Jonathan A. R., Manizade, Serdar S.. 1992-07-01. Altimetry and lidar using AlGaAs lasers modulated with pseudo-random codes. https://ntrs.nasa.gov/citations/19920021786
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