QSD (Tayloe detector) Spectrum Inversion?
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| Apr 19th 2018, 14:10 | |
WN8PTotal Topics: 0 Total Posts: 0 |
Is there a spectrum inversion that takes place when using a quadrature sampling detector (Tayloe detector)? |
| Apr 19th 2018, 14:42 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
https://www.dsprelated.com/showarticle/51.php Handling Spectral Inversion in Baseband Processing All mixers I've worked with can be used to generate spectral inversion. It is also possible to inadvertently create spectrum inversion. http://www.wparc.us/presentations/SDR-2-19-2013/Tayloe_mixer_x3a.pdf See page 10, where it says you can choose either upper or lower sideband. Translation--you can choose either to invert or not. And you can invert either at the detector or at an earlier mixing stage. Or at multiple stages, if you wish. Zak Lau W1VT |
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