DSBSC AM Demodulator Passband
Demodulation of a signal modulated using amplitude modulation with two sidebands and suppressed carrier frequency.
Description
The DSBSC AM Demodulator Passband unit demodulates a signal modulated using dual sideband amplitude modulation with suppressed carrier frequency (DSBSC AM). The passband of the modulated signal is applied to the input. The input and output signals are real scalar signals.
Generally, a suitable value of Carrier frequency (Hz) is much higher than the highest frequency of the input signal. By Kotelnikov’s theorem, the inverse of the sampling period of the model (determined by the source of the model signal) must be greater than twice the Carrier frequency (Hz).
This block works only with real inputs of Float64 type. This block does not work inside the trigger subsystem.
Parameters
Parameters
# Carrier frequency (Hz) — carrier frequency
Details
Carrier frequency in Hz. This parameter must correspond to the same parameter in block DSBSC AM Modulator Passband.
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Initial phase (rad) — initial phase
Details
Initial phase in rad.
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
#
Lowpass filter design method —
Low pass filter design method
Butterworth
Details
A method used to design a low pass filter.
| Values |
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| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Filter order — filter order
Details
The order of the digital low-pass filter.
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Cutoff frequency (Hz) — filter cut-off frequency
Details
The cut-off frequency of the digital low-pass filter in Hz.
| Default value |
|
| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |