Description: 基于MEGA128的多功能仪器,提供以下9种功能：
1. 2路0-10 VDC 电压表
2. 1路0-30V DC 电压表，带有一个10X跳针，可以测试0-300VDC
3. 0 – 3 安电流表
4. 4 通道逻辑分析仪
5. 频率发生器，50%占空比方波，0－5VDC，1HZ到8MHZ.
6. 波形发生器，正弦波、三角波、方波，1HZ 到 20＋MHZ?
7. 频率计
8. +5 VDC ，200 mA 供电输出
9. -5 VDC ， 300 mA 供电输出
-MEGA128 based on the multifunctional equipment to provide the following nine functions : 1. Two Road 0-10 VDC voltage Table 2. A Road 0-30V DC voltage meter, with a 10X jump needles to test 0-300VDC 3. 0-3- 4 ammeter. 4-channel logic analyzer 5. Frequency Generator, 50% duty cycle square 0-6- 5VDC, to 8MHZ 1HZ. 6. waveform generator, sine, triangle wave, square wave, 1HZ MHZ to 20+ 7. Cymometer 8. 5 VDC, 200 9 mA output power. 5 VDC, 300 mA output power Platform: |
Size: 513024 |
Author:许海洋 |
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Description: 讲了几个最常用的射频实验仪器，包括：信号源、频谱仪、网络分析仪、功率计等几个基本仪器，比较详细。-made several of the most commonly used experimental radio frequency devices, including : signal sources, spectrum analyzer, network analyzer, Power Meter, and several other basic equipment, a more detailed. Platform: |
Size: 970752 |
Author:施耀华 |
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Description: 2005年全国大学生电子设计大赛 频谱仪 题 源代码。作品获国家一等奖，参加全国复测（西安电子科技大学）。平台Aduc841，详细见作品选编。经少量修改，基本原汁原味。-2005 National Undergraduate Electronic Design Contest spectrum analyzer source code title. Works by the national first prize, to participate in the national test-retest (Xidian University). Platform Aduc841, details see Selected works. By a small number of changes to the basic original. Platform: |
Size: 11264 |
Author: |
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Description: 最近看到有人提问怎样用FFT实现频谱分析，我认为能够进行到频谱分析的人，对于系统研究的深度基本上已经相当不错了。本人今天做了一个例程，发给大家参考一下。
历程主要内容(signal_analyzer.rar)如下：
test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。
signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。-The question was asked recently to see the realization of how to use FFT spectral analysis, I think that spectral analysis can be carried out to those who study the depth of the system basically is already quite good. Today I made a routine, distributed to Members for reference. The main contents of the course (signal_analyzer.rar) are as follows: test1.txt the first time as t, 0.001s for the step the second as the system input signal the third as a system output signal. signal_analyzer.m first test1.txt data read into workspace, and then proceed to FFT, analysis of the two signal frequency, output amplitude for input attenuation (db), the output of the input phase difference. Platform: |
Size: 6144 |
Author:李小明 |
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Description: 基于MATLAB的线性调频信号产生以及频谱分析，某雷达参数下的模糊函数及自相关函数仿真分析。-MATLAB based on the linear frequency modulation signal generator and spectrum analyzer, a parameter under the radar ambiguity function and autocorrelation function simulation analysis. Platform: |
Size: 119808 |
Author:张挺伟 |
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Description: 2007年全国大学生电子设计大赛，A题音频信号分析仪的全部源程序。
单片机为c8051f120，系统时钟倍频至96MHZ。
main.c是一个包含五级菜单的主函数。
FFT.C是进行fft变换，将时域信号变换成频域信号。
flash.c是读写片外flash存储器的程序,可以将分析结果保存,以备调用.
z7290.c是周立功7290键盘芯片的驱动程序.
FFT_xgjis.c是对变换后的频谱进行分析和运算.
FFT_CodeTable.c是一个正弦表,在FFT的时候调用.
LCD320240.c是320*240的液晶驱动程序,液晶的控制器是SED1335.
所有的.h文件提供了子函数的定义.
本程序用KEIL3 802版本编译通过，将所有的.C文件添加到工程中，并编译main.c
注意两点:1.器件选择c8051f120.
2.在target中将时钟设为96M.同时必须将Memory Model 改成large--XDATA.默认的是small.
因为本设计占用的资源是非常大的.
Program Size: data=81.3 xdata=6811 code=43056-2007 National Undergraduate Electronic Design Contest, A title of the audio signal analyzer full source code. Singlechip c8051f120, system clock multiplier to 96MHZ. main.c is a menu that contains the main function 5. FFT.C is fft transform, time-domain signal will be converted into frequency domain signals. flash.c are reading and writing flash memory chip procedure, the results of the analysis can be preserved, for calling. z7290.c weeks are Ligong 7290 driver keyboard chip. FFT_xgjis.c is transformed spectrum analysis and computing. Sine FFT_CodeTable.c is a table at a time when FFT calls. LCD320240.c are 320* 240 LCD drivers, LCD controllers are SED1335. all. h document provides the definition of Functions. Platform: |
Size: 35840 |
Author:王渔阳 |
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Description: 单词频度分析器，可以打开.txt文件，提供3中单词查询方式-Word frequency analyzer, you can open the. Txt file, to provide 3 word query Platform: |
Size: 88064 |
Author:李晓龙 |
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Description: 通过麦克风输入波形，程序自动动态输出频谱分析结果-with the wave through micphone as input, this program produce the frequency as output Platform: |
Size: 7702528 |
Author:ls112112 |
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Description: 本音频信号分析仪由32位MCU为主控制器，通过AD转换，对音频信号进行采样，把连续信号离散化，然后通过FFT快速傅氏变换运算，在时域和频域对音频信号各个频率分量以及功率等指标进行分析和处理，然后通过高分辨率的LCD对信号的频谱进行显示。该系统能够精确测量的音频信号频率范围为20Hz-10KHz，其幅度范围为5mVpp-5Vpp，分辨力分为20Hz和100Hz两档。测量功率精确度高达1 ,并且能够准确的测量周期信号的周期，是理想的音频信号分析仪的解决方案。-The audio signal analyzer 32-bit MCU-based controller by the through the AD conversion of the audio signal sampling, the discretization of continuous signals, and then FFT Fast Fourier Transform calculations, in the time domain and frequency domain of audio signals in various frequency indicators such as weight and power analysis and processing, and then high-resolution LCD to display the signal spectrum. The system can accurately measure the audio signal frequency range of 20Hz-10KHz, the magnitude of the range of 5mVpp-5Vpp, resolution is divided into two tranches of 20Hz and 100Hz. Power Measurement accuracy up to 1 , and an accurate measurement of periodic signal cycles, is the ideal audio signal analyzer solution. Platform: |
Size: 197632 |
Author:zhangying |
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Description: 词频分析器。包含了文件读入功能。输入文本记录单词出现频率-Word frequency analyzer. Contains the file is read into function. Platform: |
Size: 2048 |
Author:薛晓旭 |
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Search - frequency analyzer