发明名称 Method for processing an echo profile and a pulse-echo ranging system
摘要 Pulse-echo ranging system are used in level measurement applications for determining the distance to a target object by measuring how long after transmission of a pulse an echo pulse is received. An echo profile ( 17 ) is generated and then processed to determine the temporal position of the echo pulse on a temporal axis. Based on the fact that the peak portion and the trailing edge of the echo profile are susceptible to be affected by the measurement environment and the target object itself, the accuracy in determining the echo arrival time is increased, by the steps of fitting a branch of a parabola ( 19 ) to a selected portion of the leading edge ( 18 ) of the echo profile ( 17 ) and determining the temporal position of the fitted parabola ( 19 ) on the temporal axis.
申请公布号 US7376047(B2) 申请公布日期 2008.05.20
申请号 US20070708380 申请日期 2007.02.20
申请人 SIEMENS MILLTRONICS PROCESS INSTRUMENTS, INC. 发明人 BROWN ROBERT;LAROCQUE JEAN-RENE
分类号 G01S7/527 主分类号 G01S7/527
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