发明授权
US07197092B2 Amplitude-offset invariant template detection for pulse position estimation; methods, systems and program products
失效
用于脉冲位置估计的幅度偏移不变模板检测; 方法，系统和程序产品
- 专利标题： Amplitude-offset invariant template detection for pulse position estimation; methods, systems and program products
- 专利标题（中）： 用于脉冲位置估计的幅度偏移不变模板检测; 方法，系统和程序产品
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申请号： US10242363申请日： 2002-09-13
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公开(公告)号： US07197092B2公开(公告)日： 2007-03-27
- 发明人: David Hernandez , David Goren
- 申请人： David Hernandez , David Goren
- 申请人地址： US NY Holtsville
- 专利权人： Symbol Technologies Inc.
- 当前专利权人： Symbol Technologies Inc.
- 当前专利权人地址： US NY Holtsville
- 代理机构： Baker Botts LLP
- 主分类号： H03D1/00
- IPC分类号： H03D1/00
摘要：
A method and system of determining and correcting modulation and offset effects in a received signal. A signal [s(n)] is received subject to modulation effects A on pulse shape or peak [p(n)] and vertical offset B due to multipath where “n” is a pulse rate or samples of the signal. A template of length N incorporates a replica of the original signal [s(n)] without multipath or vertical offset. The template is normalized and generates either an extended template or a balanced template. The extended template is correlated with the received signal [s(n)] by shifting the extended template along the received signal to estimate modulation effects of A at a particular time, n. The average difference between the template and the modulated signal [p(n)] is calculated to determine the magnitude of the offset B for a particular time, n.
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