Comparison of the pseudorandom noise code and pulsed direct-detection lidars for atmospheric probing
Author:
- Janet L. MacholJMJanet L. Machol
- 20 August 1997
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 36 (24) , 6021-6023
Abstract
The advantages and limitations of using the pseudorandom-noise (PN)-code technique in comparison with pulsed direct detection are discussed. Because the signal-to-noise ratio (SNR) of the PN codes is dependent on the average atmospheric return, strong returns from short ranges and clouds determine the SNR for all ranges. The SNR of a profile obtained by pulsed direct detection exceeds that of the PN-code technique for laser beams with the same average power.Keywords
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