微型电脑应用2025，Vol.41Issue(4)：12-16,5.
基于HC32F005的调制信号同轴传输电路设计
Design of Coaxial Transmission Circuit for Modulated Signals Based on HC32F005
摘要
Abstract
In order to realize coaxial transmission of serial communication modulation signals and satellite navigation signals,HC32F005 single chip microcomputer,CA-IF4023 on-off keying coaxial modem transceiver and the switchable matching circuit are adopted to realize the coaxial transmission function of the modulation signals.In the design,switchable matching circuit separates the satellite navigation signals on a coaxial transmission line from the serial communication modulation signals,CA-IF4023 on-off keying coaxial modem transceiver modulates the serial transmission data and demodulates the received data,and HC32F005 single chip microcomputer is used as processor to configure communication link mode and control communication da-ta receiving and sending buffer.After the coaxial transmission signal is separated by the switchable matching circuit,the on-off keying coaxial modem transceiver processes and demodulates the communication modulation signals into a digital signal which is transmitted to HC32F005 single chip microcomputer that detects the data transmission of the buffer area when the on-off keying coaxial modem transceiver is idle to realize the communication"analog full duplex"function,and the satellite navigation signal separated by the switchable matching circuit is connected with an external receiver through a radio frequency interface.The ex-perimental results show that the signals meet the design specifications after the coaxial transmission process of the serial com-munication modulation signal and the satellite navigation signal is separated,the link insertion loss of the satellite navigation signal is less than 2.5 dB,no data are lost during serial communication data transmission,proving that the proposed system de-sign has certain reference significance and practical engineering value.关键词
HC32F005/电路设计/同轴传输/串口通信/卫星导航信号Key words
HC32F005/circuit design/coaxial transmission/serial communication/satellite navigation signal分类
信息技术与安全科学引用本文复制引用
吴海龙..基于HC32F005的调制信号同轴传输电路设计[J].微型电脑应用,2025,41(4):12-16,5.基金项目
2021年度上海市"科技创新行动计划"高新技术领域项目(21511103900) （21511103900）
