Modulate using continuous phase modulation
Communications Toolbox / Modulation / Digital Baseband Modulation / CPM
The CPM Modulator Baseband block modulates an input signal using continuous phase modulation (CPM). The output of the modulator is a baseband representation of the modulated signal:
where:
{αi} represents a sequence of M-ary data symbols selected from the alphabet ±1, ±3, ±(M–1).
M must have the form 2K for some positive integer K, where M is the modulation order and specifies the size of the symbol alphabet.
{hi} represents a sequence of modulation indices and hi moves cyclically through a set of indices {h0, h1, h2, ..., hH-1}. When H=1, there is only one modulation index, h0, which is denoted as h.
For more information about this modulation and the filtering applied, see CPM Modulation and Pulse Shape Filtering.
Data Types |
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Multidimensional Signals |
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Variable-Size Signals |
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[1] Anderson, John B., Tor Aulin, and Carl-Erik Sundberg. Digital Phase Modulation. New York: Plenum Press, 1986.