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FM Demodulator Passband
Demodulate FM-modulated data
Library
Analog Passband Modulation, in Modulation
Description
The FM Demodulator Passband block demodulates a signal that was modulated using frequency modulation. The input is a passband representation of the modulated signal. Both the input and output signals are real sample-based scalar signals.
In the course of demodulating, the block uses a filter whose transfer function is described by the Lowpass filter numerator and Lowpass filter denominator parameters.
The block uses a voltage-controlled oscillator (VCO) in the demodulation. The Initial phase parameter gives the initial phase of the VCO.
Dialog Box
- Carrier frequency (Hz)
- The carrier frequency in the corresponding FM Modulator Passband block.
- Initial phase (rad)
- The initial phase of the VCO in radians.
- Modulation constant (Hertz per volt)
- The modulation constant in the corresponding FM Modulator Passband block.
- Lowpass filter numerator
- The numerator of the lowpass filter transfer function. It is represented as a vector that lists the coefficients in order of descending powers of s.
- Lowpass filter denominator
- The denominator of the lowpass filter transfer function. It is represented as a vector that lists the coefficients in order of descending powers of s. For an FIR filter, set this parameter to
1.
- Sample time
- The sample time in the corresponding FM Modulator Passband block.
Pair Block
FM Modulator Passband
See Also
FM Demodulator Baseband
| | FM Demodulator Baseband | | FM Modulator Baseband | |