Communication Systems Quiz

To store data securely

To transport an information-bearing signal from a source to a user destination

To convert analog signals into digital signals

To remove noise from a signal

To generate random noise

To transform the message signal into a form suitable for transmission

To correct errors in received signals

To store message signals

Analog communication systems

Digital communication systems

Hybrid systems

Static communication systems

Filtering and mixing

Sampling and quantizing

Modulation and demodulation

Coding and decoding

Microphone

TV camera

Teletype or computer output

Loudspeaker

To detect noise

To assign code words to symbols and remove redundancy

To multiplex signals

To regenerate corrupted signals

Channel coding

Source coding

Modulation

Sampling

To compress data for storage

To add extra bits for error detection and correction

To remove redundancy

To change analog signals into digital

Block coding

Convolution coding

Huffman coding

Error correction coding

Generates new information signals

Extracts the original message bit stream from the received waveform

Adds redundancy to improve reliability

Encodes the channel bits