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1. 发明授权

US07512171B2 System and method for calibrating an analog signal path in an ultra wideband receiver 失效
标题翻译：用于在超宽带接收机中校准模拟信号路径的系统和方法
公开(公告)号：US07512171B2
公开(公告)日：2009-03-31
申请号：US11214736
申请日：2005-08-31
申请人： Bobby L. Barnes , Timothy R. Miller
发明人： Bobby L. Barnes , Timothy R. Miller
IPC分类号： H04B1/00
CPC分类号： H04L27/08 , H04B1/0003 , H04B1/28 , H04B1/71637
摘要： A system (500) and method (400) are presented for calibrating an analog signal path (200) associated with an Ultra Wideband (UWB) receiver (103). The analog signal path includes a plurality of analog gain stages (210, 212-214, 216), a local oscillator mixer stage (211), a compensation stage (218), and a converter stage (219). A frequency offset of 4 Mhz is applied to a local oscillator signal to reduce a correlation between a received signal and the local oscillator signal. One of the analog gain stages is activated and an offset obtained at the converter stage is stored as a compensation value (243). The compensation value is retrieved whenever the analog gain stages is activated during normal processing and the compensation value applied at the compensation stage to reduce the offset.
摘要翻译：提出了一种用于校准与超宽带（UWB）接收机（103）相关联的模拟信号路径（200）的系统（500）和方法（400）。模拟信号路径包括多个模拟增益级（210,212-214,216），本地振荡器混频器级（211），补偿级（218）和转换级（219）。 4MHz的频率偏移被施加到本地振荡器信号以减小接收信号与本地振荡器信号之间的相关性。模拟增益级之一被激活，并且在转换器级获得的偏移被存储为补偿值（243）。在正常处理期间模拟增益级被激活并且在补偿级施加的补偿值减小偏移量时，检索补偿值。

2. 发明授权

US07697614B2 System and method for calibrating an analog signal path during operation in an ultra wideband receiver 失效
标题翻译：用于在超宽带接收机中操作期间校准模拟信号路径的系统和方法
公开(公告)号：US07697614B2
公开(公告)日：2010-04-13
申请号：US11239082
申请日：2005-09-30
申请人： Bobby L. Barnes , Timothy R. Miller
发明人： Bobby L. Barnes , Timothy R. Miller
IPC分类号： H04L27/08
CPC分类号： H04B1/71637
摘要： A system (500) and method (400) are presented for calibrating an analog signal path (200) associated with an Ultra Wideband (UWB) receiver (103). The analog signal path includes a plurality of analog gain stages (210, 212-214, 216), a local oscillator mixer stage (211), a compensation stage (218), and a converter stage (219). An information signal includes whitened symbols (306). When a predetermined number of whitened symbols are accumulated for one of a plurality of gain configurations, an arithmetic mean is calculated and used an offset value. The offset value is retrieved whenever the gain configuration is activated and applied at the compensation stage to reduce the offset.
摘要翻译：提出了一种用于校准与超宽带（UWB）接收机（103）相关联的模拟信号路径（200）的系统（500）和方法（400）。模拟信号路径包括多个模拟增益级（210,212-214,216），本地振荡器混频器级（211），补偿级（218）和转换级（219）。信息信号包括白化符号（306）。当为多个增益配置之一累积预定数量的白化符号时，计算算术平均值并使用偏移值。当增益配置被激活并在补偿阶段施加以减少偏移时，检索偏移值。

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