4 ms·
That's why virtually every RF frontend oversamples sufficiently to do the sharp filtering in DSP.
by aDfbrtVt 5y ago
That's why virtually every RF frontend oversamples sufficiently to do the sharp filtering in DSP.
- pgorczak 5y agoAlthough when receiving a weak signal with strong out of band interference, you may still need a lot of dynamic range to successfully filter it out digitally.
- VLM 5y ago3rd order IMD performance can become an issue. 3rd ord IMD for non-EE could be described as low power mixers like mixing low power signals and usually the low power signal comes from your intentionally designed radio oscillator, but, whack it with enough incoming RF power and it will go non-linear as its designed to do and start mixing with that incoming signal, mostly making massive levels of interference. You can always improve 3rd order IMD by simply running the oscillator and mixer at higher power levels (which all turns to heat), usually not the best strategy for battery powered gear.