| 一种性能优良的新型单音解码器 |
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| 引用本文： | 鲁昆生,程文青.一种性能优良的新型单音解码器[J].华中科技大学学报(自然科学版),1999,27(4):77-79. |
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| 作者姓名： | 鲁昆生 程文青 |
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| 作者单位： | 华中理工大学电子与信息工程系 |
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| 摘 要： | 给出一种新型的单音解码器，它由单片机外部硬件及内部程序组成的锁相环单音同步电路及正交相干解调器两部分构成．其解码频率可由程序任意设置，解码灵敏度高，速度快，Ｓ／Ｎ为１２ｄＢ时解码时间小于１８ｍｓ，工作稳定可靠，已用于多种通信设备中．
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| 关 键 词： | 单音解码器 锁相环 相干解调 |
| 修稿时间： | 1998-11-12. |
A New Tone Decoder with Excellent Performance |
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| Lu Kunsheng,Cheng Wenqing.A New Tone Decoder with Excellent Performance[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1999,27(4):77-79. |
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| Authors: | Lu Kunsheng Cheng Wenqing |
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| Abstract: | A new tone decoder
is given, which is consisted of the external circuit and internal program of the microcomputer
quadratic coherent demodulator. Its decoding frequency can be set by the program freely, its
decoder sensitivity is high, and its speed is fast. The decoding time is less than 18ms at 12dB
SNR. This tone decoder operates stably and credibly and is used in many communication
equipments. |
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| Keywords: | tone decoder Phase Locked Loop (PLL) coherent demodulation |
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