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List of abbreviations
AB – Accumalator Bataries AC – Aircraft ACB – Accumulator Charges Box AD – Amplitude Detector AFD – Antenna Feedering Device AI – Arrow Indicator AM – Amplitude Modulation Ap. C – Aperture Control APR – Attenuator and Phase Rotator AS – Antenna Switch ATCT – Air Traffic Control Tower BM – Balance Modulation BSB – Box of Supplies Block CB – Control Box CME – Control Measuring Equipment DAD – Distributed Antenna Device DB – Distribution Board DC – Directional Coupler DMD – Difference Modulation Depth DPD – Density of probabilities distribution DS – Directional Section F – Filter GL – Glide Line GPB – Glide Path Beacon GS – Glide Slope HFB – High Frequency Box ICAO – International Civil Aviation Organization IHRB – Inner Homing Radio Beacon ILS – Instrumental Landing System ISF – Indentification Signal Former L/LOC – Localizer LF – Low Frequency LFO – Low Frequency Oscillator NC – Narrow Channel OHRB – Outer Homing Radio Beacon PD – Power Devider PPI – Pointer Position Indicator R – Rectifier REE – Radoielectronic Equipment RF – Radio Frequency SDF – Sum and Difference Former SMI – Sensor Measuring Information T – Transmitter TPC – Toleance Power Control UHF – Ultra High Frequency VHF – Very High Frequency WC – Wide Channel
Introduction For radio systems range navigation and landing systems are providing positioning of the aircraft (aircraft) at a distance of 500 km with respect to the beacon, and the position of the aircraft relative to the runway while landing. Depending on the type of aircraft on board can be installed navigation and landing equipment or complex system of short-range navigation and landing. The basis of short-range navigation systems (PRS) - a network of independent ground beacons (RM), which defines the parameters of the navigation. There are azimuth, long-range and long-range azimuthal beacons (RM), which is mounted on the ground and in the points corresponding to the characteristic parts of the airways. For RLS allocated plots the range of meter and decimeter waves, so their range of action is limited to a range of line of sight. Navigation options range navigation systems - bearing and distance are determined on the aircraft with respect to the radio navigation points Types range navigation systems differ since the informative signal parameter used to determine navigation parameters, as well as the structure of the system as a whole. The most widely used system RSBN domestic and foreign ICAO standardized system VOR / DME.
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