Stephen

WELCOME……

INTEGRATED AVIONICS SYSTEMS

SUBMITTED BY:STEPHEN JOSE PADATHARA S8 ECE-B ROLL NO :- 63

What are Integrated Aircraft Avionics?
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To pilot: all coordinated information is available from a single source To software engineer: full access to shared data about situation, mission, and systems To hardware designer: systems as a single unit with ample bandwidth to support processing

Avionics Systems
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Navigation Communications Electronic Warfare Flight Control Displays

Fully Integrated Northrop Grumman AMMC

Courtesy Northrop Grumman

COCKPIT OF AIRBUS A380

Navigational Systems
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Radar Weather/terrain monitoring Air traffic tracking GPS Inertial reference systems

Communications Systems
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Radio receivers/transceivers Voice-to-data Digital messaging Satellite communications

Courtesy Northrop Grumman

Electronic Warfare Systems
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IFF (Identification of Friend or Foe) Jamming and countermeasures Weapons management Target sighting/tracking Defense

Courtesy http://www.cognitivedistortion.com

Flight Control Systems
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Autopilot - Controls Altitude, Attitude and Heading Measurements of position, angular velocities, and linear accelerations in all degrees of freedom i.e. Honeywell Primus 1000, Primus 2000, and KFC 225

Display Systems
HUD (Heads Up Display)  HDD (Head Down Display)  HMD (Head Mounted Display)  All instrumentation and gauges


Courtesy Rockwell Collins

Where We Have Been

Courtesy http://www.easa.eu.int/conference2005/presentations/day3/Cert/complex_avionics_bahrami.ppt

Where We Are Going
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Mitigation/elimination of radiation and electromagnetic effects on avionics Slowing semiconductor wear out in devices More progressive form of flight planning Greater integration of in-flight data with ground systems Projects worked on by: Boeing, Honeywell, Smith’s Aerospace, and Goodrich Aerospace as well as others.

COMPONENTS
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Space Segment
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24 satellites in 6 orbital planes. 30 satellites at present at 11000miles above earth.

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Control Segment
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Ground stations on earth. Monitors orbiting and performs clock corrections.

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Receiver
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Navigation and precise positioning. Timing and research projects.

Positioning using Satellites

ADVANCED FORMS OF GPS
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Differential GPS using two ground based receivers. Carrier-Phase GPS carrier frequency is very high. Augmented GPS uses one geostationary satellite

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Reasons for TIDGET
 For

aircrafts, multiple stand alone GPS receivers are required.  Power, mass and volume.  Continuous link with satellites during navigation.

TIDGET Architecture

Multiple Antenna Installation for All - Round Visibility

To

achieve high accuracy To prevent degradation of GPS signals.

TIDGET

Hardware Assembly

 Three

identical circuit boards.  One master and two slaves.

Each board consists of :


Connectors:
Avionics host connection ( power, control and data). 2. GPS antenna connection. 3. Stack-thru connection.
1.

Low-Noise Amplifier.  Integrated GPS front-end.  CPLD with SRAM.  TCXO and Buffers.
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Working of TIDGET in Brief
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Snapshot from satellite to

Antenna.

Low-Noise Amplifier.  RF to digital by GPS front-end.  Snapshot saved in the Buffer.  Position determination using SDR.  RF circuitry turned off till next snapshot.


CONCLUSION
The TIDGET Advantages:
 Average

Power Consumption is very low.  Continuous link with satellite not required.  Thermal problems avoided (>50ms).  Multiple snapshots can be stored in queue.

Sources
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http://www.globalsecurity.org/military/systems/aircraft/f-22avionics.htm http://www.rockwellcollins.com/ecat/br/Pro_Line_21.html http://www.honeywell.com/sites/aero/PrimusEpic.htm http://www.nsd.es.northropgrumman.com/Html/ITAS/index_4.ht m http://www.dsp.dla.mil/2004-DSP-conf/Condra-031604.ppt http://www.aerosonic.com/index.htm http://www.iccdconference.org/proceedings/1996/75540141.pdf#search=%22f uture%20avionics%20systems%22 http://www.honeywell.com/sites/aero/Flight_Controls_Guidance .htm

Thank U…

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