| 基于USB的2FSK调制解调器设计 |
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| 引用本文： | 吉兵,单甘霖. 基于USB的2FSK调制解调器设计[J]. 火力与指挥控制, 2009, 34(4) |
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| 作者姓名： | 吉兵 单甘霖 |
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| 作者单位： | 军械工程学院,河北,石家庄,050003;军械工程学院,河北,石家庄,050003 |
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| 摘 要： | 基于USB的2FSK调制解调器采用USB设备开发方案,以AN2131QC为核心设计硬件,调制单元通过按位分析数据并控制82C53输出不同频率的方波实现;解调单元通过LM2917对2FSK信号进行频压转换并比较滤波实现.该调制解调器既具有便携性、实时性和准确性,也可广泛应用于低频段2FSK信号的调制解调.
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| 关 键 词： | USB 调制解调 2FSK 频压转换 |
Design of Modem 2FSK based on USB |
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| JI Bing,SHAN Gan-lin. Design of Modem 2FSK based on USB[J]. Fire Control & Command Control, 2009, 34(4) |
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| Authors: | JI Bing SHAN Gan-lin |
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| Affiliation: | Ordnance Engineering College;Shijiazhuang 050003;China |
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| Abstract: | This paper puts forward a design scheme of modem 2FSK using Universial Serial Bus(USB).Its hardware design centres around AN2131QC,the modulation element analyses data bit-by-bit,and controls 82C53 to output square wave of different frequency:the demodulation element conducts 2FSK signal freqency-voltage conversion through LM2917.The demodem has portability,real time liness and accuracy,applicable to 2FSK signal modulation and demodulation at low frequency band. |
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| Keywords: | USB 2FSK |
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