Detection of tone signals using a nonlinear energy tracker |
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| Authors: | Sung-Soo Hwang Yong-Hwan Lee |
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| Affiliation: | Sch. of Electr. Eng., Seoul Nat. Univ.; |
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| Abstract: | A simple scheme is proposed for detecting tone signals narrowly spaced in frequency. By employing Teager's energy tracker as a preprocessor, the tone detector can be implemented without the use of sharp notch filters. The proposed detector is applied to distinguishing ITU-T V.8 and V.25 tone signals. The detector performance is analysed and verified by computer simulation |
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