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Altera_Forum
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14 years ago

Problem in Implementing Autocorrelation on Stratix II EP2S60 DSP Development Board

Hi there, I am trying to synchronize the transmitted signal with the receiver by energy detection. The transmitted signal is a sine wave and I plan to autocorrelate it to obtain the peak and th...
Altera_Forum's avatar
Altera_Forum
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14 years ago

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I am having a hard time with my ADC. Its AC coupled and changes the signal I send. Could you please send me something about handling the ADC.

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If the ADC is AC coupled, then it will have a low-frequency limit. You need to check the bandwidth of the AC coupling circuit. Is it just some capacitors or is it a balun? Are you using an Altera board, or custom board?

There are some spectra in here from the Stratix II DSP Kit:

http://www.ovro.caltech.edu/~dwh/correlator/pdf/lfsr_tutorial.pdf

The spectrum looks fine at 3MHz (if this is the board you are using).

Cheers,

Dave