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correlation peak calculation optimization #5

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jmfriedt opened this issue Jan 3, 2023 · 0 comments
Open

correlation peak calculation optimization #5

jmfriedt opened this issue Jan 3, 2023 · 0 comments

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@jmfriedt
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jmfriedt commented Jan 3, 2023

At the moment each iteration is independent of the previous ones and no assumption on the stability of the signal is done. The correlation calculation as iFFT(FFTxFFT*) on an N-long code requires N.ln2(N) multiplications.
Assuming we know the next correlation peak is close to the previous one (+/-1), does a time-domain calculation save time with the 3xN multiplications?
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