Measuring and testing – Navigation – Leeway incidence or side-slip
Patent
1987-10-16
1989-05-23
Ruehl, Charles A.
Measuring and testing
Navigation
Leeway incidence or side-slip
73170R, 367 92, G01W 102
Patent
active
048318744
ABSTRACT:
This invention relates to a parametric source Doppler acoustic wind profiler for measuring atmospheric wind conditions. It includes a parametric acoustic source excited by a transmitter generating a pair of primary frequencies and radiates an intermodulation difference frequency. Echoes of the difference frequency are produced by wind induced scatter at the difference frequency which is significantly lower than the transmitted primary frequencies and detected by a single microphone or an array of microphones.
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Clarke Thomas L.
Daubin Scott C.
Daubin Systems Corporation
Gell Harold
Ruehl Charles A.
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