It is a kind of inhibit spectrum leakage sampling interval compensation method and system

It is a kind of inhibit spectrum leakage sampling interval compensation method and system

  • CN 104,062,494 B
  • Filed: 05/30/2014
  • Issued: 08/14/2018
  • Est. Priority Date: 05/30/2014
  • Status: Active Grant
First Claim
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1. a kind of sampling interval compensation method inhibiting spectrum leakage, which is characterized in that include the following steps:

  • A. ideal clock number is calculated;

    B. ideal clock number is compensated according to accumulation truncated error and is compensated post-sampling interval;

    C. round is carried out to compensation post-sampling interval and obtains actual samples interval;

    D. according to actual samples interval and compensation post-sampling interval update accumulation truncated error;

    In the step A, ideal clock number is calculated according to the fundamental frequency of input signal and per cycle sampling number,Calculate ideal clock number formula be:

    Nideal=(controlling of sampling clock)/(signal frequency * is per cycle sampled point), it is describedNidealIndicate ideal clock number;

    In the step B, the formula at compensation post-sampling interval is:

    Ncompensate-ideal=Nideal+△

    Nsum, describedNcompensate-idealIndicate compensation post-sampling interval, the △

    NsumIndicate that the sampling interval accumulates truncated error.

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