公开(公告)号：EP2073027A1

公开(公告)日：2009-06-24

申请号：EP08171108.7

申请日：2008-12-09

申请人： Honeywell International Inc.

发明人： Gibson, Timothy Honeywell International Inc. ,  Hunter, Jeffrey Kent Honeywell International Inc.

IPC分类号： G01R23/16

CPC分类号： G01R23/02 ,  G01S13/785

摘要： A system and method for determining a received signal frequency by sampling the received signal at a rate less than the nyquist rate. The system includes a distorting component configured to distort the received signal in a frequency dependent manner, at least one analog to digital converter configured to sample the received signal and the distorted signal at a rate less than the nyquist rate, and a processing component configured to determine a frequency of the received signal based on the sampled received signal and the sampled distorted signal. The method includes distorting the received signal, sampling the received signal and the distorted signal at a rate less than the nyquist rate, and determining a frequency of the received signal. In an embodiment, distorting includes at least one of distorting an amplitude or a group delay of the received signal.

摘要翻译： 一种用于通过以小于尼奎斯特速率的速率对接收到的信号进行采样来确定接收信号频率的系统和方法。 该系统包括被配置为以频率相关的方式使接收到的信号失真的失真部件，至少一个模/数转换器被配置成以小于奈奎斯特速率的速率对接收到的信号和失真信号进行采样，并且处理部件被配置为 基于采样的接收信号和采样的失真信号确定接收信号的频率。 该方法包括使接收到的信号失真，以小于奈奎斯特速率的速率采样接收信号和失真信号，以及确定接收信号的频率。 在一个实施例中，失真包括使接收信号的振幅或组延迟失真中的至少一个。