WO1996007106A3 - Multi-parameter air data sensing technique - Google Patents

Multi-parameter air data sensing technique Download PDF

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Publication number
WO1996007106A3
WO1996007106A3 PCT/US1995/010968 US9510968W WO9607106A3 WO 1996007106 A3 WO1996007106 A3 WO 1996007106A3 US 9510968 W US9510968 W US 9510968W WO 9607106 A3 WO9607106 A3 WO 9607106A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensing
aircraft
static pressure
air data
data sensing
Prior art date
Application number
PCT/US1995/010968
Other languages
French (fr)
Other versions
WO1996007106A2 (en
Inventor
Robert J Slabinski
Richard C Filipkowski
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Priority to DE69522229T priority Critical patent/DE69522229T2/en
Priority to EP95934961A priority patent/EP0778951B1/en
Publication of WO1996007106A2 publication Critical patent/WO1996007106A2/en
Publication of WO1996007106A3 publication Critical patent/WO1996007106A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid

Abstract

Static pressure sensing and free airstream temperature sensing is obviated in a method for determining aircraft velocity relative to an airmass by utilizing a static pressure and temperature component present in pressure variations sensed by a total pressure sensor located on a rotating arm mounted on the fuselage of an aircraft. A harmonic analysis of a quasi-sinusoidal total pressure variation includes a determination of steady state and both first and second harmonic components. These harmonic components are used to determine the static pressure, the free airstream temperature and the aircraft airspeed without separately sensing these parameters.
PCT/US1995/010968 1994-08-30 1995-08-30 Multi-parameter air data sensing technique WO1996007106A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69522229T DE69522229T2 (en) 1994-08-30 1995-08-30 SEVERAL PARAMETERS OF AIR DATA MEASUREMENT TECHNOLOGY
EP95934961A EP0778951B1 (en) 1994-08-30 1995-08-30 Multi-parameter air data sensing technique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/298,456 1994-08-30
US08/298,456 US5610845A (en) 1994-08-30 1994-08-30 Multi-parameter air data sensing technique

Publications (2)

Publication Number Publication Date
WO1996007106A2 WO1996007106A2 (en) 1996-03-07
WO1996007106A3 true WO1996007106A3 (en) 1996-05-02

Family

ID=23150604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/010968 WO1996007106A2 (en) 1994-08-30 1995-08-30 Multi-parameter air data sensing technique

Country Status (4)

Country Link
US (1) US5610845A (en)
EP (1) EP0778951B1 (en)
DE (1) DE69522229T2 (en)
WO (1) WO1996007106A2 (en)

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US8138970B2 (en) * 2003-03-20 2012-03-20 Hemisphere Gps Llc GNSS-based tracking of fixed or slow-moving structures
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US8140223B2 (en) * 2003-03-20 2012-03-20 Hemisphere Gps Llc Multiple-antenna GNSS control system and method
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US6938472B2 (en) * 2003-12-10 2005-09-06 Sikorsky Aircraft Corporation Static pressure calculation from dynamic pressure for rotary air-data system and methodology therefor
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US8583315B2 (en) * 2004-03-19 2013-11-12 Agjunction Llc Multi-antenna GNSS control system and method
US7284420B2 (en) 2004-07-13 2007-10-23 Honeywell International Inc. Air data system and method for rotary aircraft
US7257470B2 (en) * 2004-10-29 2007-08-14 Rosemount Aerospace Inc. Fault isolation method and apparatus in artificial intelligence based air data systems
US7213454B2 (en) * 2005-04-06 2007-05-08 Rosemount Aerospace Inc. Method and apparatus for obtaining improved accuracy and range for air data parameters inferred from independent measurements of interdependent pressures
US8550402B2 (en) 2005-04-06 2013-10-08 Sikorsky Aircraft Corporation Dual-channel deicing system for a rotary wing aircraft
US7388539B2 (en) 2005-10-19 2008-06-17 Hemisphere Gps Inc. Carrier track loop for GNSS derived attitude
US7490510B2 (en) * 2005-10-24 2009-02-17 Ametek, Inc. Multi-function air data sensor
US8311696B2 (en) * 2009-07-17 2012-11-13 Hemisphere Gps Llc Optical tracking vehicle control system and method
USRE48527E1 (en) 2007-01-05 2021-04-20 Agjunction Llc Optical tracking vehicle control system and method
US7835832B2 (en) * 2007-01-05 2010-11-16 Hemisphere Gps Llc Vehicle control system
US8000381B2 (en) * 2007-02-27 2011-08-16 Hemisphere Gps Llc Unbiased code phase discriminator
US7808428B2 (en) * 2007-10-08 2010-10-05 Hemisphere Gps Llc GNSS receiver and external storage device system and GNSS data processing method
US20100161179A1 (en) * 2008-12-22 2010-06-24 Mcclure John A Integrated dead reckoning and gnss/ins positioning
WO2009100463A1 (en) * 2008-02-10 2009-08-13 Hemisphere Gps Llc Visual, gnss and gyro autosteering control
US8018376B2 (en) * 2008-04-08 2011-09-13 Hemisphere Gps Llc GNSS-based mobile communication system and method
US8217833B2 (en) * 2008-12-11 2012-07-10 Hemisphere Gps Llc GNSS superband ASIC with simultaneous multi-frequency down conversion
US8386129B2 (en) 2009-01-17 2013-02-26 Hemipshere GPS, LLC Raster-based contour swathing for guidance and variable-rate chemical application
US8085196B2 (en) 2009-03-11 2011-12-27 Hemisphere Gps Llc Removing biases in dual frequency GNSS receivers using SBAS
US8401704B2 (en) * 2009-07-22 2013-03-19 Hemisphere GPS, LLC GNSS control system and method for irrigation and related applications
US8174437B2 (en) * 2009-07-29 2012-05-08 Hemisphere Gps Llc System and method for augmenting DGNSS with internally-generated differential correction
US8334804B2 (en) * 2009-09-04 2012-12-18 Hemisphere Gps Llc Multi-frequency GNSS receiver baseband DSP
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Also Published As

Publication number Publication date
US5610845A (en) 1997-03-11
WO1996007106A2 (en) 1996-03-07
DE69522229D1 (en) 2001-09-20
EP0778951B1 (en) 2001-08-16
EP0778951A2 (en) 1997-06-18
DE69522229T2 (en) 2002-02-28

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