Question

Assignment No 1 Question 1: Convert the following digital data into digital signal using polar Invert (NRZ) and bi-polar 11000011 11111000 00011000

slove seperatly question nbr 2 and 3

Answer 1

Pues convert digital data into digital signal the following polas invest and resing bipolar Polar Invert (NR 2-I) steps :- 1) There is a transition If the next logical bit is It does not show any transition if logical bit is o. Data 11 00 00 11 Amplitude, 1 1 1 O O o O 1 1 1 1 Time 1 1 1 Transition due to next Assume that Previous signal before starting positive ws bit I Data 1111000 1 1 7 1 } 1 0 0 10 Amplitude Finne Transition due to 1 Data = ООО 11 ООО 1 1 1 0 0 Amplitude 1 o ! o io 1 1 'Time 1 Transition due to i

Bipolar :- 11 It uses The voltage level other hand the positive negative and for data is 2000 other is represented as one zero Voltage levels. while on the alternative positive one and negative ) It is of two type :- AMI (Alternate mark Inversion) : represented by represents zero voltage logical data value positive and negative where as logical data value I is alternative positive and negative and for o Pseudo ternary is represented by alternative I represents zero voltage Data 11 0000 11 Amplitude 1 1 0 | AMI Time Pseudo- ternary Data = 000 ווזון 0 1 1 1 AMI Pseudo- temary

- 00011 000 Data Amplitude olo 10 100 AMI - Time - Time Pseudo- ternary