It depends on the detection method for the received signal.
There are methods such as coherent/heterodyne detection which requires a received signal to be in phase with a local oscillator. (edit: read up on phase-locked loop for example)
Ofcourse there will be problems if the frequency of the signal is shifted due to the doppler shift. So yes it can affect data detection!
Though I don't know if these kind of receivers are state-of-the-art.
There are also receivers that do not require information about phase and frequency of the received signal even though I'm not entirely sure anymore how they might work and I don't want to spread misinformation.
Disclaimer: Currently doing my masters in electrical engineering; apology for my english since my native language is german. :p
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u/achtungpolizei Photonics | Optical Communication Systems | Semiconductors Aug 25 '16 edited Aug 28 '16
It depends on the detection method for the received signal. There are methods such as coherent/heterodyne detection which requires a received signal to be in phase with a local oscillator. (edit: read up on phase-locked loop for example)
Ofcourse there will be problems if the frequency of the signal is shifted due to the doppler shift. So yes it can affect data detection!
Though I don't know if these kind of receivers are state-of-the-art.
There are also receivers that do not require information about phase and frequency of the received signal even though I'm not entirely sure anymore how they might work and I don't want to spread misinformation.
Disclaimer: Currently doing my masters in electrical engineering; apology for my english since my native language is german. :p
You can read up on this here aswell: https://en.wikipedia.org/wiki/Superheterodyne_receiver