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POLAR ENCODING

 POLAR ENCODING   Polar encoding uses two levels ( positive and negative ) of amplitude. The polar encoding is catagorise into 3 types :- ·          NRZ(non return to zero) ·          RZ(return to zero) ·          Biphase     Non Return To Zero (NRZ)-   In NRZ encoding , The level of the signal is always either positive of negative .                The NRZ encoding includes two methods :- ·          Non Return To Zero ,Level (NRZ-L) ·          Non Return To Zero ,Invert (NRZ-I) NRZ-L :-   In NRZ-L encodingthe level of the signal depends on the type of bit it represents. §   A positive voltage means the bit is 0 , and a negative voltage mean...

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