RF Receiver without Oscillator/Mixer/ADC?

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kurtulmehtap

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Dear All,
I have a 100kbps BPSK modulated signal at 1 Ghz.
Usually one downconverts (Oscillator+Mixer) the signal and recovers the Data and Clock using an ADC and DSP.
Since we have a BPSK signal can't we just detect the phase changes and filter out the transmitted 100kbps signal? No Oscillator+Mixer+ADC.
Is there such a technique or am I just dreaming?
 

You'll also think about receiver bandwidth, sensitivity, signal-to-noise ratio...
 

FvM said:
You'll also think about receiver bandwidth, sensitivity, signal-to-noise ratio...
Click to expand...

That means a Yes or No? Assume that we have a signal strong enough ( enough Eb/No), can the phase changes be detected?
 

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