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bed TRESS Coe Example; — Given that the bit sequence given below is to be transmitted Bit sequence = 10110010. Draw the resulting waveform, if the sequence is transmitted using (i) Unipolar RZ (ii) Polar RZ (iii) AMI (iv) Split phase Manchester (v) M-array where M = 4 (Polar quaternary) Solution: The required waveform will be shown in the Fig. | =] Bit sequence 1 | 0 | rt. | 0 | 0 | 1 L 0 A RZ l time, f =. = 7T,/2 Polar RZ A oO oO time, f o U oUt LU AMI A ~~ time, t 0 Th> | | -A Split phase Manchester A time, t 0 -APr ‘ie 11 Polar 3A/2 quaternary 10 10 A/2 » time, t ine Example Which are the desirable properties of digital waveform? To transmit a bit sequence 10011011 draw the resulting waveform using (i) Unipolar RZ (ii) Unipolar NRZ (iti) AMI RZ (iv) Manchester Solution: The required waveform will be shown in Fig. 2.24. Ty bene Bit sequence 1 0 0 1 1 0 1 1 “ew 1 1n 110 * time, ¢ 1 1 1 1 1 Vaio NZ | E °| || | — > time, ¢ ie Manchester format Po Example Consider a binary sequence with a long sequence of 1s followed by a single 0 and using the following signalling then a long sequence of 1s. Draw the waveforms for this sequence, formats: (ii) Bipolar NRZ signaling (i) Unipolar NRZ signaling (iii) AMI RZ signaling Solution: Split-phase (Manchester) (iv) Binary sequence 1 Unipolar NRZ — Bipolar NRZ AMI RZ —<—<_. i —-=-<--+ ——_=|-—. Manchester —-=-F-4-_W. Example format. For the binary sequence 110101101 construct NRZ, RZ, AMI and Manchester Solution: NRZ Bipolar RZ Bipolar 
