Patent ID: 7564539
Filing Date: 2009-07-21
Classification: B64D,G01P,G01S,Y02A

Abstract:
1. A system for sensing of air outside a moving aircraft, comprising: at least one laser for generating laser radiation; at least one transceiver operable to project the laser radiation to the air and to receive scattered laser radiation from the air, the at least one transceiver including at least one band stop filter selected from the group consisting of an interference filter, a dichroic filter, a fiber Bragg grating filter, a Rugate filter, and combinations thereof, the at least one band stop filter for filtering the laser radiation to form filtered laser radiation and for filtering the scattered laser radiation to form filtered scattered laser radiation; and a computer for controlling the laser and for processing signals from the transceiver to determine one or more air parameters based on at least the filtered scattered laser radiation and the filtered laser radiation.