| 用TTL 计数器和译码器组成数传MODEM |
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| 引用本文： | 陈伟,郭守清. 用TTL 计数器和译码器组成数传MODEM[J]. 西南石油学院学报, 1989, 11(3): 105-110 |
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| 作者姓名： | 陈伟 郭守清 |
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| 作者单位： | 西南石油学院管理工程系(陈伟)，西南石油学院管理工程系(郭守清) |
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| 摘 要： | 根据定时式脉冲鉴频原理,本文给出一种适用于计算机无线电通信的调制解调器,该电路用TTL计数器和译码器产生定时信号,实现频移键控调制和解调,其数据传送速率为1200bps。
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| 关 键 词： | 调制解调器 译码器 计数器 MODEM |
USING COUNTER AND DECODER OF TTL TO CONSTITUTE MODEM |
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| Chen Wei Guo Shouqing. USING COUNTER AND DECODER OF TTL TO CONSTITUTE MODEM[J]. Journal of Southwest Petroleum Institute, 1989, 11(3): 105-110 |
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| Authors: | Chen Wei Guo Shouqing |
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| Affiliation: | Department of Management Engineering |
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| Abstract: | This paper gives one MODEM that is applicable for computer radio communication according to the principle of timing pulse frequency discrimination. Counters and decoders of TTL are used in the circuit to produce timing signal, to achieve modulation and demodulation of frequency-shift keying. The data transfer rate of the MODEM is 1200 bps. |
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| Keywords: | MODEM (Modulator-demodulator) Pulse frequency diserimination Counter Decoder |
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