Understanding one of the most wonderful branch of electronics:

By: Parth

One of the most wonderful and interesting branch of electronics is AVIONICS. Avionics stands for AVI-ation electr-ONICS. The on-board electronics used for piloting the aircraft is called Avionics. Avionics include communication & navigation systems, autopilots & electronic Flight Management System (FMS) etc. These systems use embedded computers within them. Earlier Radio telephone systems & valves were replaced by transistor-radio systems. Different navigation systems were developed along with the time such as NDB (Non-Directional radio Beacon) which are still being used in the airports due to their lower cost.VHF Omni Range is immune to interference and thunderstorms and provides improved accuracy & is still the backbone of air navigation systems.

Instrument Landing System (ILS) is a set of components used to navigate to the landing end of the run-way. Transponder is the transceiver that receives 'interrogations'from air traffic control radar & replies with a digital code. This secondary radar reply permits the radar system to detect the aircraft more reliably and at greater distances than are possible with primary radar. This systems of secondary radars and transponders is collectively known as Air Traffic Control Radar Beacon Systems (ATCRBS).Distance Measurement Equipment(DME) is used to inform the pilot of his/her aircraft's distance away from the VOR station, thus with a bearing and distance from particular known VOR station a pilot can fix his/her exact position. LORAN systems provide navigational guidance over large areas, were popular particularly for general aviation use. Avionics have changed significantly after the advent of GPS receivers & 'glass cockpit display systems. The use of GPS has changed aircraft navigation both in the en-route phase & approach phases of the flight. Advances in computing power & LCD panel display made 'glass cockpit' possible.

Thus Avionics system is including very much wide coverage of electronics field and still the inventions are going on, on the same with plenty of acceleration.

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