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做的等精度频率计,采用等精度测量原理,即利用双计数器“相关计数”和“硬件同步分频”实现高低频率的等精度的测量。用FPGA实现频率测量、周期测量、时间间隔测量、相位测量及脉冲宽度的测量。所有的测量功能都由VHDL语言编程实现。-I do other precision frequency meter, use and other precision measuring principle, namely the use of dual-counter " related counts&qu
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几个关于用vhdl 语言,编写测频,频率计程序的论文,希望对初学者有用!-Vhdl on the use of several languages, write frequency measurement, frequency meter program of papers, I hope useful for beginners!
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频率测量程序,都是正在产品的使用中,高低频自动切换显示-Frequency measurement procedures, are all products in use, high-low-frequency automatic switching display
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主要介绍了等精度频率测量原理,该原理具有在整个测试频段内保持高精度频率
测量的优点 同时在该原理基础上,采用了Verilog HDL语言设计了高速的等精度测频
模块,并且利用EDA开发平台QUARTUS11 3 .0对CPLD芯片进行写人,实现了计数等
主要逻辑功能 还使用C语言设计了该等精度频率计的主控程序以提高测量精度。本设
计实现了对频率变化范围较大的信号进行频率测量,能够满足高速度、高精度的测频要
求。-Introduced, such as the accuracy
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本书介绍雷达对抗原理,包括雷达对抗概述、雷达信号频率的测量、雷达的方向测量和定位、雷达侦察的信号处理、雷达侦察作用距离与截获概率、遮盖性干扰、欺骗性干扰、干扰机组成及干扰能量的计算以及对雷达的无源对抗技术-The book introduced the principle of radar confrontation, including an overview of radar confrontation, radar signal frequency measurement, the dir
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智能频率计
1. 频率测量范围为1Hz~1MHz
2. 当频率在1KHz以下时采用测周方法 其它情
况采用测频方法.二者之间自动转换
3. 测量结果显示在数码管上,单位可以是Hz(H)、
KHz(AH)或MHz(BH)。
4. 测量过程不显示数据,待测量结果结束后,直接显示结果。
-Intelligent frequency meter 1. Frequency measurement range of 1Hz ~ 1MHz 2. When th
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一种多功能频率计,由门电路和单片机实现,0.1-10M的信号频率测量,效果理想!-A multifunctional Cymometer from gate circuit and ,0.1-10M single-chip realization of the signal frequency measurement, the results are satisfactory!
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vhdl代码: 采用等精度测频原理的频率计程序与仿真!初学fpga者可以参考参考!!比较简单-VHDL code: Using the principle of frequency measurement accuracy, such as the frequency of procedures and simulation! FPGA beginner who can refer to reference! ! Relatively simple
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短时傅立叶变换测频,可对复信号处理。界面设计好,用户交互方式编程。-STFT frequency measurement can be complex signal processing. Interface design, the user interactively programming.
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51单片机测频率的程序,还包括仿真的文件,还有1602的液晶驱动程序,是测频率的好选择-51 Single-chip frequency measurement procedures, the document also includes the simulation, there are 1602 of the LCD driver, is a good choice of measurement frequency
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采用等精度测频原理的频率计的程序与仿真
--文件名:PLJ.vhd。
--功能:4位显示的等精度频率计。
-Such as the accuracy of frequency measurement using the principle of the frequency of the procedure and simulation- the file name: PLJ.vhd.- Function: 4 shows, such as precision frequency me
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基于凌阳单片机的简易语音数字频率计源码.实验了语音播报测量的频率,幅度值等.-Sunplus based on a simple single-chip voice Digital Cymometer source. Experimental measurement voice broadcast frequency and magnitude of value.
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2008年北京市大学生电子设计竞赛程序源代码[测频率,测幅值,测相位]。进过竞赛测试性能良好,获奖作品-Beijing 2008 Undergraduate Electronic Design Contest source code [test frequency, measured amplitude, phase measurement]. Progressive had a good race to test the performance, winning entries
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这个程序是基于Msp430单片机开发的一个测量外部频率的程序,经测试精度满足一般要求.-this program is developed for frequency measurement based on msp430
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本程序实现基于pic16f877的CCP输入捕捉和频率测量功能。-This procedure based on the implementation of the CCP Input Capture PIC16F877 and frequency measurement capabilities.
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本系统采用AT89C51控制MAX038产生波形的频率范围和类型,并采用输出驱动放大电路,对MAX038输出的波形信号进行放大。同时还设计了时钟复位电路和键盘显示接口。系统中利用AT89C51的功能,设计了频率测量电路,并完成了硬件电路所需要的软件驱动程序。-AT89C51 control system uses the MAX038 waveform generated frequency range and type, and the use of output driver amplifi
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等精度测频 FPGA程序,能实现很好的精度,最高大1HZ-FPGA, such as precision frequency measurement procedure, can achieve very good accuracy, the highest large 1Hz
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二分频的实现 二分频的作用是将测相范围由0°~180°扩大到0°~360°。-Two sub-band implementation of the two is the role of sub-frequency measurement phase will range from 0 ° ~ 180 ° extended to 0 ° ~ 360 °.
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数字频率计是一种用来测试周期性变化信号工作频率的装置。其原理是在规定的单位时间(闸门时间)内,记录输入的脉冲的个数。我们可以通过改变记录脉冲的闸门时间来切换测频量程。本文利用EDA技术中的Max+plusⅡ作为开发工具,设计了基于FPGA的8位十进制频率计,并下载到在系统可编程实验板的EPF10K20TC144-4器件中测试实现了其功能。-Digital frequency meter is a kind of cyclical changes in the signal used to tes
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一个使用M8的ICP功能测量频率的例子
带dsn仿真-M8 use the ICP a functional example of the frequency measurement with simulation dsn
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