Patent · US Active

Auto simultaneous referencing air-to-air background oriented schlieren

US11443439B1 · kind B1 · utility

0Cited by

3References

23Claims

0Family size

Assignee

USA as Represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

Daniel W. Banks · Rancho Cordova, US
James T. Heineck · San Jose, US

Key dates

Filing date	Mar 16, 2020
Grant date	Sep 13, 2022
Priority date	—
Expiry date	Oct 3, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10032
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An air-to-air background-oriented schlieren system in which reference frames are acquired concurrently with the image frames, recording a target aircraft from a sensor aircraft flying in formation, while concurrently recording reference frames of underlying terrain to provide a visually textured background as a reference. This auto-referencing method improves the original AirBOS method by allowing a much more flexible and useful measurement, reducing the flight planning and piloting burden, and broadening the possible camera choices to acquire imaging of visible density changes in air that cause a refractive index change by an airborne vehicle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.