Some contributions to a frequency location method due to He and Kedem
Some contributions to a frequency location method due to He and Kedem
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He 和 Kedem 对频率定位方法的一些贡献
DOI：
10.1109/18.86969
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
S. Yakowitz
中科院分区：
文献类型：
--
作者：
S. Yakowitz
作者从可调谐滤波器中衍生出一种有用的信息论技术，通过调整其参数以适应其输出的相关系数，自动检测高斯白噪声中未知信号的频率。 S. He 和 B. Kedem 早期提出的可调谐滤波器（参见同上，第 35 卷，第 2 期，第 360-9 页，1989）被称为 HK 滤波器。该方法回避了白噪声和正态性假设。更重要的是，它表明可以制作广泛类别的线性滤波器来实施检测计划。特别是，带通滤波器有望比 HK 滤波器更快、更准确地锁定。该分析得出每次递归时误差收缩的公式。 >
The author derives a useful information-theoretical technology from the tunable filter that automatically detects the frequency of an unknown signal in white Gaussian noise by adjusting its parameter to the correlation coefficient of its output. The tunable filter earlier proposed by S. He and B. Kedem (see ibid., vol.35, no.2, p.360-9, 1989) is known as the HK filter. The methodology sidesteps the white noise and normality assumptions. More importantly, it is shown that broad classes of linear filters can be made to implement the detection plan. In particular, bandpass filters can be expected to lock-in even more quickly and accurately than the HK filter. This analysis yields a formula for the error contraction at each recursion. >