Homodyne concept of receiver

1. What is a homodyne receiver?
2. What is the difference between heterodyne and homodyne?
3. What is the principle of receiver?
4. What is meant by heterodyne receiver?

What is a homodyne receiver?

A direct-conversion receiver (DCR), also known as homodyne, synchrodyne, or zero-IF receiver, is a radio receiver design that demodulates the incoming radio signal using synchronous detection driven by a local oscillator whose frequency is identical to, or very close to the carrier frequency of the intended signal.

What is the difference between heterodyne and homodyne?

Homodyne systems can use a common laser source, but everything else (interferometer, detection, and signal processing) must be duplicated per axis. Heterodyne systems, conversely, can use a common laser source, optical reference, and signal processing electronics for multiple axes.

What is the principle of receiver?

The superheterodyne receiver is the most common configuration for radio communication. Its basic principle of operation is the translation of all received channels to an intermediate frequency (IF) band where the weak input signal is amplified before being applied to a detector.

What is meant by heterodyne receiver?

Definitions of heterodyne receiver. a radio receiver that combines a locally generated frequency with the carrier frequency to produce a supersonic signal that is demodulated and amplified. synonyms: superhet, superheterodyne receiver. type of: radio, radio receiver, radio set, receiving set, tuner, wireless.