| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a signal analyzer capable of reducing an influence when a deficiency of a periodical signal is generated. <P>SOLUTION: This analyzer is provided with a difference parameter setting part 1 for setting a difference parameter; an interval setting part 3 for setting a range of an arrival time interval or the like; a setting part 5 of the number of signals for setting the number of continuous periodical signals; an interval calculation part 2 for calculating a plurality of arrival time intervals by adding a duration of each signal and the difference parameter together; an interval subdivided section selection part 4 for selecting to which of a plurality of interval subdivided sections, each of the plurality of arrival time intervals corresponds; a plurality of phase accumulation calculation parts 6 for setting arrival time subdivided sections by using the number of the continuous periodical signals, selecting to which arrival time subdivided section, the arrival time and the arrival time interval are pertinent, calculating a complex number based on the arrival time and the arrival time interval in each arrival time subdivided section, and calculating the total value of complex numbers in each arrival time subdivided section; and periodicity determination part 7 for estimating a series number and the arrival time interval of the periodical signal and a time when the periodical signal arrives based on the total value of the complex numbers in each arrival time subdivided section. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
