Progress in optimal processing of frequency-agile lidar data

Russell E. Warren

doi:10.1117/12.279070

31 October 1997 Progress in optimal processing of frequency-agile lidar data

Russell E. Warren

Proceedings Volume 3127, Application of Lidar to Current Atmospheric Topics II; (1997) https://doi.org/10.1117/12.279070
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

This paper reviews recent progress in methods for optimal detection and estimation of vapor concentration using data from frequency-agile lidar. Following a summary of the likelihood ratio statistical method for constructing optimal tests, the paper shows how the basic approach derived in an earlier paper can be generalized to include the use of transmitter pulse energy measurements for reducing the estimation variance due to shot-to-shot fluctuations in the pulse energy. The transmitter normalization method developed here is compared with the usual ratioing approach on simulated and actual lidar data. Finally, the paper extends the earlier fixed-size data sample likelihood ratio approach to include the time series aspect of data collection. Modeling the path-integrated concentration vector as a simple random walk process in time, the earlier maximum likelihood (ML) estimates are replaced by Kalman filter estimates. The Kalman filter estimates are compared to the unfiltered ML estimates on vapor chamber data.

Citation Download Citation

Russell E. Warren "Progress in optimal processing of frequency-agile lidar data", Proc. SPIE 3127, Application of Lidar to Current Atmospheric Topics II, (31 October 1997); https://doi.org/10.1117/12.279070

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