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Function File: y = pskmod (x, m) ¶

Function File: y = pskmod (x, m, phi) ¶

Function File: y = pskmod (x, m, phi, type) ¶

Modulates an information sequence of integers x in the range [0 … M-1] onto a complex baseband phase shift keying modulated signal y. phi controls the initial phase and type controls the constellation mapping. If type is set to "Bin" will result in binary encoding, in contrast, if set to "Gray" will give Gray encoding. An example of Gray-encoded QPSK is

d = randint (1, 5e3, 4);
y = pskmod (d, 4, 0, "gray");
z = awgn (y, 30);
plot (z, "rx")

The output y will be the same shape as the input x.

See also: pskdemod.

Package: communications