TABLE OF CONTENTS Binary phase shift keying (PSK) shifts the phase angle of the carrier frequency to one of two discrete phases during the bit time T b for the representation of binary logic signals for the transmission of information. The modulated sinusoidal carrier signal has an amplitude of A V, a frequency of f c Hz, as given by the analytical expression in Equation 3.30.
| (3.30) |  |
On the CD The phase angle ? is the fixed initial phase of the PSK signal. The information signal or data source is m j( t) ( j = 0, 1) and for PSK m j( t) = 0V and 1 V for one bit time T b. The factor k p, with units that are 2 ? (radians)/V, is the phase deviation factor (or the modulation gain) and the phase deviation ? ? is given by Equation 3.31.
| (3.31) |  |
The phase shift ? is the sum of the phase deviation and the fixed initial phase, as given by Equation 3.32.
| (3.32) |  |
A binary phase shift keying (PSK) coherent digital communication system with AWGN is shown in Figure 3.11 (see Fig3-11.svu on the CD-ROM). To facilitate the simulation in SystemVue, all of the Analysis tokens, except that for the BER token output as the Final Value token, are deleted in the simulation model Fig3-11DT. As described in Chapter 1 the SystemVue...
