Howtosignalprocessing
FM demodulation is a key process in the reception of a frequency modulated signal. Once the signal has been received, filtered and amplified, it is necessary to recover the original modulation from the carrier. It is this process that is called demodulation or detection.
- How do you demodulate an FM signal?
- How do you demodulation a signal?
- What is the purpose of FM demodulation?
How do you demodulate an FM signal?
A simple and effective FM demodulation technique involves a high-pass filter (for FM-to-AM conversion) followed by an AM demodulator. A high-pass-filter-based FM demodulator is preceded by a limiter to prevent amplitude variations from contributing error to the demodulated signal.
How do you demodulation a signal?
An obvious way to demodulate a signal with a carrier and two equidistant sideband components is to use two lock-in amplifiers in series such that the first device demodulates at the carrier frequency with wide bandwidth and the second one demodulates at the sideband frequency.
What is the purpose of FM demodulation?
The demodulation process recovers the original information (modulating signal) from the carrier signal. The process of demodulation is also called detection or discrimination, and the device constructed for demodulation can be called a demodulator, detector, or discriminator.
