3 ms·
What's extraordinary about the claim? The guard band between 5G and radio altimeters is ~200MHz, which is massive. If your filtering can't handle signals over 2
by jaywalk 5y ago
What's extraordinary about the claim? The guard band between 5G and radio altimeters is ~200MHz, which is massive. If your filtering can't handle signals over 200MHz away from what you're looking at, then it's garbage filtering.
- anfilt 5y ago200 Mhz may be massive for communications (especially digital encoded signals), not necessarily for radar when you sensor is receiving weak reflected signals that very likely can have a frequency shift on reflection. So radar receivers need to receive on a wider frequency band than a receiver for communications. Depending on the strength of 5G transmitters the higher order harmonics could be above the noise floor.
- NovemberWhiskey 5y agoEspecially for FMCW applications using homodyne transceiver architectures; like you see in most civilian radar altimeters.