Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
| university:courses:electronics:electronics-lab-envelope-detector [02 Mar 2018 12:28] – add frequency domain analysis Antoniu Miclaus | university:courses:electronics:electronics-lab-envelope-detector [02 Mar 2018 12:35] – Antoniu Miclaus | ||
|---|---|---|---|
| Line 85: | Line 85: | ||
| <WRAP centeralign> | <WRAP centeralign> | ||
| - | The obtained signal is the envelope of the positive half wave obtained previously. It is actually the 100 Hz message signal with some 10 KHz variations on it. | + | The obtained signal is the envelope of the positive half wave obtained previously. It is actually the 100 Hz message signal with some 10 KHz variations on it (introduced by the carrier signal). |
| ==== Frequency Domain Spectrum ==== | ==== Frequency Domain Spectrum ==== | ||
| - | We can also view these signals in the frequency domain using the Spectrum Analyzer tool. First we can look at the 10 KHz carrier and 100 Hz message signals together. Enable channel 1 and set the sweep range from 10 Hz to 15kHz. Run a single sweep. Enable markers 1 and 2 from the Markers tab and the Marker Table. Move each marker using "Prev Peak", "Next Peak" to set them on the carrier and the message signal. A plot example is presented in Figure 6. | + | We can also view these signals in the frequency domain using the Spectrum Analyzer tool. First we can look at the 10 KHz carrier and 100 Hz message signals together |
| <WRAP centeralign> | <WRAP centeralign> | ||
university/courses/electronics/electronics-lab-envelope-detector.txt · Last modified: 10 Mar 2021 17:35 by Cristina Suteu