发明名称 |
Velocity estimation apparatus and method using level crossing rate |
摘要 |
<p>Disclosed is a velocity estimator using a level crossing rate. The velocity estimator comprises a power calculator for calculating power values of a signal received from a mobile terminal; a mean power calculator for calculating mean power values for M power values according to a predetermined down-sampling factor M; an interpolator for interpolating the mean power values according to a predetermined interpolation ratio L; a root mean square calculator for calculating a root mean square value using an output of the interpolator; a level crossing counter for counting a level crossing frequency representing how many times the output of the interpolator crosses a level crossing threshold determined according to the root mean square value, for a predetermined time period; and a velocity calculator for calculating a velocity estimation value of the mobile terminal using the velocity crossing frequency. <IMAGE></p> |
申请公布号 |
EP1480355(A1) |
申请公布日期 |
2004.11.24 |
申请号 |
EP20040011783 |
申请日期 |
2004.05.18 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;YONSEI UNIVERSITY |
发明人 |
CHO, MYEON-GYUN;HONG, DAE-SIK |
分类号 |
H04B7/26;H04W36/32;H04W64/00;(IPC1-7):H04B7/26 |
主分类号 |
H04B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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