Question: Show that the truth table given in Table 7.3 can be constructed by combining the following two steps: (a) The message signal b(t) and PN

Show that the truth table given in Table 7.3 can be constructed by combining the following two steps:

(a) The message signal b(t) and PN signal c(t) are added modulo-2.

(b) Symbols 0 and 1 at the modulo-2 adder output are represented by phase shifts of 0 and 180 degrees, respectively.

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