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. It is formed by addition or subtraction of two
weighted sine
binary offset carrier
Binary offset carrier modulation (BOC modulation) was developed by John Betz in order to allow interoperability of satellite navigation systems. It is currently used in the US GPS system, Indian IRNSS system and in Galileo and is a square sub-car ...
modulations. It has been introduced as an
MBOC variant, following an EU-US Agreement in 2004 on the Promotion, Provision and use of Galileo and GPS Satellite-Based Navigation Systems and Related Applications.
A CBOC
theoretical model
A theory is a rational type of abstract thinking about a phenomenon, or the results of such thinking. The process of contemplative and rational thinking is often associated with such processes as observational study or research. Theories may be s ...
ing can be found in.
[Lohan2010]
References
* E.S. Lohan, "Analytical performance of CBOC-modulated Galileo E1 signal using sine BOC(1,1) receiver for mass-market applications", in Proc. of ION-PLANS 2010, 3–5 May 2010, Palm Springs, CA (Lohan2010)
*O. Julien, C. Macabiau, L. Ries, J.-L. Issler, 1 - Bit processing of Composite BOC (CBOC) Signals, First CNES Workshop on Galileo Signals and Signal Processing, 12–13 October 2006, IAS ( Institut Aero Spatial ) Toulouse, France (Julien2006)
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Quantized radio modulation modes
Galileo (satellite navigation)