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Analysis of trains of pulses

  • US 20080192864A1
  • Filed: 10/12/2007
  • Published: 08/14/2008
  • Est. Priority Date: 10/24/2005
  • Status: Abandoned Application
First Claim
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1. A method of analysing a received signal containing a train of pulses occurring at respective times of arrival, the method comprising:

  • (a) forming a group of pulses such that pulses within the group have a substantially uniform pulse repetition interval within a range defined by predetermined minimum and maximum values; and

    (b) calculating an average group pulse repetition interval by;

    (i) for each of a plurality of pulses in the group, determining a respective approximate repetition interval;

    (ii) determining a vector from each said approximate repetition interval by performing a linear mapping process such that the range between the predetermined minimum and maximum values is represented by an arc of a length which is less than or equal to π

    ,(iii) determining the angle of a vector sum of the determined vectors; and

    (iv) performing an inverse of said mapping process to derive said average group pulse repetition interval from the angle of said vector sum.

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