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1. 发明申请

US20070299635A1 Removing electrical noise in systems with ADCs 有权
标题翻译：消除带有ADC的系统中的电气噪声
公开(公告)号：US20070299635A1
公开(公告)日：2007-12-27
申请号：US11475607
申请日：2006-06-26
申请人： Christoph Lang , Fernando Pancorbo
发明人： Christoph Lang , Fernando Pancorbo
IPC分类号： G06F17/10 , G06F17/40
CPC分类号： H03M1/0678 , H03M1/0626 , H03M1/12
摘要： Signal processing systems and methods are described that include a multi-analog receiver front end with adaptive filtering. The multi-analog receiver front end uses two or more analog-to-digital converters (ADCs) to remove additive electrical noise present in the analog front end. The multiple ADCs are followed in the signal processing path by digital statistical signal processing. The multi-analog receiver front end adaptively determines the passband of a digital filter in a system with input signals having a wide frequency range of interest, and controls filtering of the input signals to the narrow frequency range that includes an input signal. The multi-analog receiver front end, through removal of additive noise, provides higher signal-to-noise ratios for a given power dissipation and chip area when compared to receiver front ends which do not use the multiple ADCs.
摘要翻译：描述信号处理系统和方法，其包括具有自适应滤波的多模拟接收器前端。多模拟接收机前端使用两个或更多个模数转换器（ADC）来消除模拟前端中存在的附加电噪声。通过数字统计信号处理在信号处理路径中跟随多个ADC。多模拟接收器前端通过输入信号具有较宽的频率范围自适应地确定系统中的数字滤波器的通带，并且将输入信号的滤波控制到包括输入信号的窄频率范围。与不使用多个ADC的接收机前端相比，通过去除附加噪声，多模拟接收机前端为给定的功耗和芯片面积提供了更高的信噪比。

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