High Resolution Remote Doppler Lidar Wind Sensor

Period of Performance: 02/27/1998 - 02/27/2000

$743K

Phase 2 SBIR

Recipient Firm

Coherent Technologies, Inc.
135 S. Taylor Avenue,
Louisville, CO 80027
Principal Investigator

Abstract

The proposed Phase II program develops an eyesafe, high resolution 1.5 um Doppler lidar sensor capable of 3-5 m spatial resolution, 0.2-0.5 m/sec velocity precision; and adequate temporal resolution to permit remote measurement of low altitude atmospheric disturbances to ranges of a few kilometers. For spatial resolutions of 20-30 m, this same sensor will be capable of operating to ranges of 6-10 km. The Phase II program develops a unique dual-mode transreceiver architecture in which either direct detection or heterodyne detection operation is utilized. The base Phase II effort focuses on the development and preliminary demonstration, of the, high-power, dual-mode transceiver. Several operational tasks are included that, add a' dedicated scanner and signal processor to form the complete sensor. An additional operational follow-on task is to perform more extensive masked helicopter signature measurements at a designated Army facility. BENEFITS: Federal government applications include wind profiling in support of ballistics trajectory prediction/compensation; general wind profiling near air bases and aboard Naval vessels; space-based wind profiling. Private sector applications include airport terminal area monitoring; general wind profiling for weather forecast and competitive sailing; clear air turbulence detection ahead of commercial airliners.