الخميس، 14 مارس 2013

HARDWARE IMPLEMENTATION

HARDWARE IMPLEMENTATION 

1- Polar Signaling

Block Diagram


 
The Operation of Block Diagram

·        The data stream is generated by shift register loaded via counter. This stream is periodic symbols ,each symbol contain a group of pulses depending on input data
·        The data is appearing at the output of lower AND gate and inverted at the output of upper AND gate.
·        The line code is obtained via adding each stream to the 2's complement of this stream.
·        To obtain the clock at the receiver, the line code stream is applied to full wave rectifier circuit.

To obtain the data at the receiver ,the line code stream is applied to two terminal of AND gate  or half wave rectifier circuit.


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