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专利名称：VELOCITY MEASURING METHOD AND
VELOCITY MEASURING DEVICE USING THESAME
发明人：Shinichiro Umemura,Takashi Azuma,Tetsuya
Hayashi,Naoyuki Murayama
申请号：US11915625申请日：20060106
公开号：US20090177091A1公开日：20090709
专利附图：
摘要：The present invention is to provide a velocity measuring method and a velocity
measuring device for carrying out the method. The velocity measuring method includes: astep (S) for expanding N time series signals by using 0-th to (N−1)-th degree discreteLegendre function as a base; a step (S) for calculating 2n-th degree complex expansioncoefficient by multiplying a linear combination of a (2n−1)-th degree expansion coefficientand a (2n+1)-th degree expansion coefficient by an imaginary unit and then linearlycombining the result and a 2n-th degree expansion coefficient, and calculating a (2n+1)-thdegree complex expansion coefficient by multiplying the (2n+1)-th degree expansioncoefficient by an imaginary unit and then linearly combining the result, the 2n-th degreeexpansion coefficient and a (2n+2)-th degree expansion coefficient; a degree decision step(S) for determining the degree m of a coefficient having the maximum absolute valueamong the complex expansion coefficients; and a step (S) for calculating a signed velocitysignal concerning a moving reflection object from a ratio of square sums of the expansioncoefficients or complex expansion coefficients corresponding to the degree m.
申请人：Shinichiro Umemura,Takashi Azuma,Tetsuya Hayashi,Naoyuki Murayama
地址：Sendai JP,Kodaira JP,Kashiwa JP,Kashiwa JP
国籍：JP,JP,JP,JP
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