Receiver (information theory)

The receiver in information theory is the receiving end of a communication channel. It receives decoded messages/information from the sender, who first encoded them.[1] Sometimes the receiver is modeled so as to include the decoder. Real-world receivers like radio receivers or telephones can not be expected to receive as much information as predicted by the noisy channel coding theorem.

Real-world receivers include:

* For modulated radio waves, a radio receiver
* For converting specifically AM modulated radio waves to sound, an AM Tuner
* For converting specifically FM modulated radio waves to sound, an FM Tuner
* For converting specifically television transmissions to video and audio, a television tuner, which may be a component of an AV receiver
* For modulated ultrasound waves, a receiver (modulated ultrasound)
* For converting analog electrical signals on a wire to audio, a speaker system, which may be a component of an audio headset or telephone handset.
* For reading magnetic patterns on tape, a tape head
* For reading magnetic patterns on a disk platter, the read head located on the disk read-and-write head
* For reading printed barcodes, a barcode reader.

## References

[edit]

1. ^ "information theory - Classical information theory | Britannica". www.britannica.com. Retrieved 2022-03-14.

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