In the "diff" mode, the current and preceding bits should be XORed and then a positive or negative frequency offset should be applied depending on the bits being '1' or '0'. However, these are not the results I receive when using the function MSKMOD.
MATLAB: How is the differentially encoded MSK modulation implemented in the Communications Toolbox 3.0 (R14)
Communications Toolboxdiff()mskmod
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