Binary offset carrier ( BOC ) is the modulation used by COMPASS.
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It is formed by addition or subtraction of two weighted sine binary offset carrier modulations.
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The modulation method is binary offset carrier, using a 10.23 MHz subcarrier against the 5.115 MHz code.
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Phenomena similar to the capture effect are described in AM when offset carriers of different strengths are present in the passband of a receiver.
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Alternative analog modulation schemes are under discussion, such as the " CLIMAX " multi-carrier system and offset carrier techniques to permit more efficient utilization of spectrum.
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The "'Composite Binary Offset Carrier "'( CBOC ) modulation is a particular implementation of the Multiplexed Binary Offset Carrier modulation and it is nowadays used by Galileo satellite signals.
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The "'Composite Binary Offset Carrier "'( CBOC ) modulation is a particular implementation of the Multiplexed Binary Offset Carrier modulation and it is nowadays used by Galileo satellite signals.
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The modulation technique used is multiplexed binary offset carrier ( TMBOC ) is BOC ( 1, 1 ) for all except 4 of 33 cycles, when it switches to BOC ( 6, 1 ).
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GIOVE satellites transmitted multifrequency ranging signals equivalent to the signals of future Galileo including new signals based on the use of the BOC ( Binary Offset Carrier ) technique, in particular the high-performance E5AltBOC signal.
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MBOC has two main implementations, the Composite Binary Offset Carrier ( CBOC ) implementation, currently used in Galileo and the Time-Multiplexed Binary Offset Carrier ( TMBOC ), currently used in modernized GPS L1C signal.