7 June 2011 Pulsed coherent fiber lidar transceiver for aircraft in-flight turbulence and wake-vortex hazard detection
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Abstract
We report on the development of a fiber-optic pulsed coherent lidar transceiver for wind-velocity and aircraft wake-vortex hazard detection. The all-fiber 1.5μm transmitter provides up to 560 μJ energy at 25 kHz with 800 ns pulse width (pump limited). Performance simulations indicate wake-vortex hazard signature detection up to ~2.5km range with a receiver sensitivity of ~2 fW (SNR=6), suited for an aircraft landing scenario. Furthermore, the transceiver is implemented using high-speed FPGA based control and digital-signal-processing, enabling its use as a flexible pulse-format multi-function in-flight lidar sensor. We present the latest laboratory results and preliminary testing of this pulsed coherent lidar transceiver, along with the lidar performance simulation of wake-vortex eddy models.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Akbulut, J. Hwang, F. Kimpel, S. Gupta, and H. Verdun "Pulsed coherent fiber lidar transceiver for aircraft in-flight turbulence and wake-vortex hazard detection", Proc. SPIE 8037, Laser Radar Technology and Applications XVI, 80370R (7 June 2011); doi: 10.1117/12.883990; https://doi.org/10.1117/12.883990
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