Title

Atmospheric Induced Frequency Fluctuations In Lidar

Keywords

Frequency fluctuations; Frequency variance; LIDAR

Abstract

It is well known that the transmission of an optical signal through the turbulent atmosphere results in random phase fluctuations. In turn, these random phase fluctuations impart a random frequency fluctuation onto the optical signal. As laser radar (lidar) systems rely on the evaluation of micro-Doppler frequency shifts of the reflected optical wave to determine certain target characteristics, it is critical to understand the impact of the atmospheric induced frequency fluctuations. Additionally, lidar systems used for defense applications would typically operate in moderate to strong atmospheric turbulence conditions. Hence, for such applications, it is necessary to develop models describing atmospheric induced frequency fluctuations of an optical wave that are valid in all regimes of optical turbulence. In this paper, we present preliminary results for a model of atmospheric induced frequency fluctuations for the double pass propagation problem in weak optical turbulence conditions and a possible method for extension of these results into moderate to strong turbulence conditions.

Publication Date

12-20-2004

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

5413

Number of Pages

82-92

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.539517

Socpus ID

10044296197 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/10044296197

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