Accession Number:

ADA281014

Title:

Using Lidar Tomography to Characterize Scattering in a Turbulent Media

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Hooper, William P.

Report Date:

1994-03-28

Pagination or Media Count:

14.0

Abstract:

A tomographic method for objectively determining extinction and backscatter using a single, scanning wavelength lidar is outlined. In the theoretical analysis, the scattering media is observed from different directions by a lidar which is either moved or observed the structures as they drift past the lidar. A matrix equation is developed and tested by randomly selecting extinction and backscatter values on a 5 by 5 grid. Measurement and turbulence induced errors are modeled and the measurement accuracies are assessed. Results for the theoretical calculations suggest that the method would provide accurate results for a scanning airborne lidar, but not from a scanning systems that does not move.

Descriptors:

• *OPTICAL RADAR
• *RADAR SCANNING
• LIGHT SCATTERING
• AEROSOLS
• AIRBORNE
• TURBULENCE
• BACKSCATTERING
• TOMOGRAPHY

Subject Categories:

• Optical Detection and Detectors
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE