数字–模拟混合传输装置的设计
Design of Hybrid Transmission Device of Digital and Analog Signal
DOI: 10.12677/SEA.2022.112039, PDF,    科研立项经费支持
作者: 叶俊龙：浙江理工大学信息学院，浙江 杭州
关键词: FSK；超外差结构；单端转差分；混合同传；FSK； Superheterodyne Structure； Single-Ended to Differential Conversion； Mixed Interpretation
摘要: 设计并制作了一套数字–模拟混合传输装置，能够实现数字信号与模拟信号单独传输和同时传输。该装置由发送机和接收机组成。发送部分采用乘法器实现模拟信号和数字信号的混合后由天线发送，接收部分采用超外差结构，通过选频网络后进行信号的分离，分离后的模拟信号直接经过检波和滤波输出，数字调制信号经过整流后解码显示。为提高带宽利用率和降低功耗，该装置采用AD9959进行FSK调制。经系统测试表明，该系统可实现模拟信号与数字信号的调制与解调，模拟信号频率范围50 Hz~10 KHz，系统在2 m内可稳定传输，频带宽度不大于25 KHz。该装置的设计为数模混合信号同传应用系统提供参考。
Abstract: A hybrid transmission device of digital and analog signal was designed and implemented, which was composed of a transmitter and a receiver, and could realize separate and simultaneous transmission of digital signal and analog signal. The mixed signal based on the multiplier was sent by the antenna and received by a superheterodyne structure. The frequency selection network was used to separate the digital and analog signal. The analog signal was recovered through a detector and a filter. And the digital signal was displayed after rectifying and decoding. AD9959 for FSK modulation was used to improve bandwidth utilization and reduce power consumption. The system test shows that the system can realize modulation and demodulation of analog signal and digital signal, the frequency range of analog signal is 50 Hz~10 KHz, the system can transmit stably within 2 m, and the frequency bandwidth is not more than 25 KHz. The design of the device provides a reference for the digital-analog mixed-signal simultaneous interpretation application system.
文章引用：叶俊龙. 数字–模拟混合传输装置的设计[J]. 软件工程与应用, 2022, 11(2): 364-374. https://doi.org/10.12677/SEA.2022.112039

参考文献

[1] 高华宇, 王玲, 潘欣裕, 许凯, 李德, 史经允, 等. 基于模拟乘法器的幅度调制解调系统[J]. 物联网技术, 2021, 11(9): 18-20+23.
[2] 张志民, 李红梅, 詹武平. 一种改进的软件无线电FM信号解调方法[J]. 软件工程与应用, 2020, 9(2): 109-115. [Google Scholar] [CrossRef] 
[3] Yip, W.C., Welch, C., Mehl Georg, H. and Wilkinson, T.D. (2020) Analog Modulation by the Flexoelectric Effect in Liquid Crystals. Appliedoptics, 59, 2668-2673. [Google Scholar] [CrossRef] 
[4] 张伟. 基于虚拟仪器的模拟信号调制与解调的研究[J]. 南方农机, 2019, 50(6): 22.
[5] 宋文生, 曾丽珍, 黄锋锋, 熊平戬. 基于模拟调制方式的高速脉冲信号光纤传输[J]. 光通信技术, 2019, 43(8): 59-62.
[6] 丁鹏, 苏勇辉. 一种基于频谱分析仪的模拟信号解调与分析方法[C]//2019年全国微波毫米波会议论文集(下册). [出版者不详], 2019: 269-271.
[7] 李国诚, 黄明, 丁照雨, 徐泽琨, 曹愿栋. 基于FPGA的AM数字调制解调设计验证与分析[J]. 工业技术创新, 2019, 6(1): 36-42.
[8] 乔雅. 2ASK数字频带数字调制系统仿真设计及实现[J]. 陕西交通科教研究, 2021(2): 1-4.
[9] 刘新红. FSK调制解调电路仿真实现[J]. 电子制作, 2021(2): 35-37.
[10] 谭洋, 刘建鑫, 赵仕良. 基于AD835的正弦波测幅[J]. 实验室研究与探索, 2021, 40(9): 57-60.
[11] 王睿庭. 基于AD9959与STM32的DDS扫频信号源设计[J]. 电子测试, 2020(10): 30-31+59.
[12] 王灵芝, 凌佳乐, 蔡萍, 王志辉, 陈颖频. 便携式80-120 MHz频谱分析仪设计[J]. 闽南师范大学学报: 自然科学版, 2021, 34(2): 79-85.
[13] 马克才. 2ASK调制解调的System viem仿真研究[J]. 电子世界, 2021(14): 29-30.
[14] 李松凯, 张立立, 鲍玉斌. 频率调制的小型无线收发系统的设计与实现[J]. 电子世界, 2021(14): 124-126.
[15] 张晋顼, 任勇峰, 单彦虎, 刘艳莉, 武慧. 基于FPGA的可调节信号发生器的设计与实现[J]. 电子设计工程, 2019, 27(22): 137-141.
[16] Liu, S. and Gan, G. (2021) Novel DDS Based OFDM Transmitter Structure without IFFT and Interpolation Filter. China Communications, 18, 219-229. [Google Scholar] [CrossRef] 

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