BOC-by-BPSK signal processing algorithm for BOC and AltBOC signals

New navigation BOC signal types were introduced during GNSS evaluation GPS L1C, Galileo E5, GLONASS L2OC etc. The signals structure is complicated in comparison with traditional BPSK signals such as GPS C/A, GLONASS L1OF and others. It is supposed to use specialized correlators for the BOC signals processing. But it demands hardware modifications and limits the new signals processing by old receivers. This paper reviews the BOC-by-BPSK signal processing algorithm. The presented algorithm allows to process new BOC signals by traditional BPSK correlator based receivers. Also, the algorithm allows to adjust the ranging code delay and the subcarrier delay separately. As the result, it is possible to resolve the ambiguity of the BOC signal envelope delay caused by the multi-peak nature of its correlation function.