Howtosignalprocessing
- What is the heterodyne principle?
- What is a radio heterodyne?
- How does a down converter work?
- What is meant by heterodyne receiver?
What is the heterodyne principle?
The principle that multiple frequencies applied to a nonlinear device produce new frequencies that are sums and differences of the applied frequencies and their harmonics.
What is a radio heterodyne?
A heterodyne is a signal frequency that is created by combining or mixing two other frequencies using a signal processing technique called heterodyning, which was invented by Canadian inventor-engineer Reginald Fessenden.
How does a down converter work?
In digital signal processing, a digital down-converter (DDC) converts a digitized, band-limited signal to a lower frequency signal at a lower sampling rate in order to simplify the subsequent radio stages. The process can preserve all the information in the frequency band of interest of the original signal.
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.
