| An Approach to High-Order Cumulants Used to Detect Multifrequency Signalsin Telephone Networks |
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| 作者姓名： | LIU Ying HU Ke-gang WANG Shu-xun |
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| 作者单位： | 1 Department of Telecommunication Engineering，Changchun Institute of Posts and Telecommunications，Changchun 130012，P.R.China; 2 College of Information Science and Engineering，Jilin University of Technology，Cha |
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| 摘 要： | 1 Introduction There are two kinds of signals in distance telephone networks. One is a line signal, the other, a multifrequency signal. The multifrequency signals are divided into forward ones and backward ones. The forward signals adopt the coding patter…
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An Approach to High-Order Cumulants Used to Detect Multifrequency Signals in Telephone Networks |
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| LIU Ying,HU Ke-gang,WANG Shu-xun.An Approach to High-Order Cumulants Used to Detect Multifrequency Signalsin Telephone Networks[J].The Journal of China Universities of Posts and Telecommunications,2000(Z1). |
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| Authors: | LIU Ying HU Ke-gang WANG Shu-xun |
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| Affiliation: | LIU Ying1,HU Ke-gang1,WANG Shu-xun2 |
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| Abstract: | In accordance with the detecting process of multi-frequency signals between the offices in telephone networks, and in contrast with the autocorrelation method used to handle the multi-frequency signals, a fast, inexpensive and unbiased of cumulants estimation method is adopted in detecting signals. This detecting method is better for resisting noise performance and more practical than the autocorrelation method. |
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| Keywords: | telephone networks multi-frequency signals autocorrelation cumulants |
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