An acoustic air data system includes first and second acoustic transmitters, T1, T2, an array of acoustic receivers, and control circuitry (16). The array is positioned to receive first and second acoustic signals. The control circuitry determines time difference of arrival (TDOA) of the first and second acoustic signals. The control circuitry determines, for each of a first and second set of acoustic receiver pairs, a signal velocity of the first and second acoustic signals, respectively, based on a distance between an inner acoustic receiver and an outer acoustic receiver and a corresponding TDOA for each pair of acoustic receivers. The control circuitry estimates one or more of wind angle, speed of sound, Mach number, and true airspeed of the airflow about the exterior of the vehicle based on parameters of a best fit circle.
ACOUSTIC AIR DATA SYSTEM WITH RADIALLY PAIRED RECEIVERS
AKUSTISCHES LUFTDATENSYSTEM MIT RADIAL GEPAARTEN EMPFÄNGERN
SYSTÈME DE DONNÉES D'AIR ACOUSTIQUE COMPORTANT DES RÉCEPTEURS APPARIÉS RADIALEMENT
26.04.2023
Patent
Elektronische Ressource
Englisch
IPC: | G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01S RADIO DIRECTION-FINDING , Funkpeilung |
Acoustic air data system with radially paired receivers
Europäisches Patentamt | 2022
|UNDERWATER ANTI-DRAGGING MOORING SYSTEM FOR ACOUSTIC RECEIVERS
Europäisches Patentamt | 2024
|