基于FPGA和单片机的实时脉冲信号参数测量仪
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摘要
脉冲信号参数测量仪是一种常用的测量仪器,可以测量脉冲信号频率、占空比等参数,具有测量精度高、速度快、操作简便、数字显示等特点,广泛应用在电子技术相关的教学科研中。针对传统的脉冲信号参数测量仪价格昂贵、体积大等问题,采用低功耗的FPGA(现场可编程门阵列)芯片作为主控芯片,再由单片机控制显示被测脉冲信号的频率以及占空比,在测量频率范围和测量误差方面都很好地满足系统的设计要求。同时为了系统自校准和对外信号输出的需要,该测量仪还能产生1 MHz的标准矩形脉冲信号,具有一定的实用性。
Pulse signal parameter measuring instrument is a type of frequently used measuring instrument,which can measure the parameters such as frequency,duty cycle.And it is used widely in teaching and research related to electronic technology because its advantage of high precision,fast speed,simple operation and digital display.However,the traditional pulse signal parameter measuring instrument is expensive,bulky.So in this paper,the low power FPGA chip is used as the main control chip,and the frequency and duty cycle of the pulse signal are measured by the LCD.Moreover,the design requirements of the system are well met in the measurement frequency range and measurement errors.Meanwhile,for the need of system self-calibration and external signal output,the instrument can also produce 1 MHz standard rectangular pulse signal,which has a certain practicality.
Pulse signal parameter measuring instrument is a type of frequently used measuring instrument,which can measure the parameters such as frequency,duty cycle.And it is used widely in teaching and research related to electronic technology because its advantage of high precision,fast speed,simple operation and digital display.However,the traditional pulse signal parameter measuring instrument is expensive,bulky.So in this paper,the low power FPGA chip is used as the main control chip,and the frequency and duty cycle of the pulse signal are measured by the LCD.Moreover,the design requirements of the system are well met in the measurement frequency range and measurement errors.Meanwhile,for the need of system self-calibration and external signal output,the instrument can also produce 1 MHz standard rectangular pulse signal,which has a certain practicality.
引文
[1]孟祥利,侯孝民,廉昕.脉冲超宽带信号应用于测控领域的可行性研究[J].兵器装备工程学报,2016,37(7):123-126
[2]张波.利用蓝牙传输的远程声级计系统设计[J].金陵科技学院学报,2016(3):18-22
[3]刘竹琴,白泽生.一种基于单片机的数字频率计的实现[J].现代电子技术,2010,33(1):90-92
[4]陈平平,杨雷,张志坚.基于FPGA的VGA数据线测试仪的设计与实现[J].现代电子技术,2016,39(14):127-130
[5]朱华,王玫,王长龙.UWB定位系统中雷达脉冲检测的FPGA实现[J].计算机工程与科学,2009,31(3):132-134
[6]胡文静,张国云,刘翔,等.量程自整定高精度频率测量的FPGA实现[J].电子技术应用,2012(1):73-76
[7]李莉,熊晶.基于CPLD和单片机的等精度数字频率计设计[J].现代电子技术,2015(10):118-120
[8]屈宝鹏,张喜凤,李想.基于VHDL的高精度数字频率计的设计与实现[J].现代电子技术,2013(18):144-147
[9]郭伟然,刘耀,汤勇明.基于FPGA的频率特性测试仪的设计[J].电子器件,2011,34(6):713-717
[10]余果,郭心伟,刘小浩,等.基于FPGA的数字频率计设计[J].电子设计工程,2016,24(18):57-59
[2]张波.利用蓝牙传输的远程声级计系统设计[J].金陵科技学院学报,2016(3):18-22
[3]刘竹琴,白泽生.一种基于单片机的数字频率计的实现[J].现代电子技术,2010,33(1):90-92
[4]陈平平,杨雷,张志坚.基于FPGA的VGA数据线测试仪的设计与实现[J].现代电子技术,2016,39(14):127-130
[5]朱华,王玫,王长龙.UWB定位系统中雷达脉冲检测的FPGA实现[J].计算机工程与科学,2009,31(3):132-134
[6]胡文静,张国云,刘翔,等.量程自整定高精度频率测量的FPGA实现[J].电子技术应用,2012(1):73-76
[7]李莉,熊晶.基于CPLD和单片机的等精度数字频率计设计[J].现代电子技术,2015(10):118-120
[8]屈宝鹏,张喜凤,李想.基于VHDL的高精度数字频率计的设计与实现[J].现代电子技术,2013(18):144-147
[9]郭伟然,刘耀,汤勇明.基于FPGA的频率特性测试仪的设计[J].电子器件,2011,34(6):713-717
[10]余果,郭心伟,刘小浩,等.基于FPGA的数字频率计设计[J].电子设计工程,2016,24(18):57-59