搜索资源列表
plj
- 本程序为VHDL编写的频率计，测频范围从0.1Hz到1G-VHDL procedures for the preparation of the frequency meter, measuring frequency range from 0.1Hz to 1G
fmasmhu
- 数控调频发射台可预制11个频道，最小调频0.1HZ,可单声道立体声控制，可广泛用于无线广播，电视无线导播等。-NC FM transmitters can be prefabricated 11 channels, the smallest FM 0.1HZ. Single-channel stereo sound can control, which can be widely used in radio and television broadcasting and other wirele
multiratefliter
- 设模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。若对信号直接用FFT进行频谱分析-simulation based communications, with the frequency range 1KHz - 1.1KHz. Design of an 8 KHz sampling frequency digital spectrum analysis system requirements frequency resolutio
wigner1
- 设采样频率为1Hz，对于淹没在复高斯白噪声中的信噪比为 的两个复LFM信号，采用子带带宽为0.1Hz的升余弦滤波器，共9个子带滤波器构成的滤波器组，时间窗为窗长为256的矩形窗，进行仿真-based sampling frequency of 1Hz. For drowned in the complex Gaussian white noise to the signal-to-noise ratio of 2 Minute LFM, using sub-band bandwidth of 0
stft4
- 对于持续时间为500s的两个LFM信号，其初始频率分别为0.1Hz、0.3Hz，中止频率分别为0.3Hz、0.1Hz，在不含噪声和含有噪声（ ）的情况下，仿真-for the duration of the two 500s LFM, the initial frequency of 0.1Hz. 0.3Hz, suspension frequencies of 0.3Hz, 0.1Hz. In noise-free and noisy () cases, the simulation
Freqtest
- 测试频率 基于C8051F330单片机的频率测试 频率测试精度：0.1Hz-testing frequency C8051F330 microcontroller based on the frequency of testing frequency accuracy : 0.1Hz
ten
- 一个很好的VHDL程序.可以实现64HZ分为0.1HZ
digital_cymometer
- 简易数字频率计利用复杂可编程逻辑器件FPGA,VHDL编程将所有功能模块集成在一块芯片上。功能模块包括时基脉冲发生器、计数器、数据锁存器和显示电路4部分。设计时先分别设计各功能模块，并调试得到正确仿真结果，然后将各个功能模块组合起来。最后作整体仿真、下载，得到实物。由于采用纯数字硬件设计制作，稳定性、可靠性远远高于使用单片机或模拟方式实现的系统，外围电路简单。该数字频率计达到预期要求，实现了可变量程测量，测量范围0.1Hz—9999MHz，精度可达0.1Hz。
ad9833
- AD9833资料 AD9833是ADI公司生产的一款低功耗，可编程波形发生器，能够产生正弦波、三角波、方波输出。波形发生器广泛应用于各种测量、激励和时域响应领域，AD9833无需外接元件，输出频率和相位都可通过软件编程，易于调节，频率寄存器是28位的，主频时钟为25MHz时，精度为0.1Hz，主频时钟为1MHz时，精度可以达到0.004Hz。
50M
- verilog 语言写的分频模块，实现用50Mhz的时钟频率分出1hz的频率，也就是一秒的频率-verilog language sub-frequency module, using the 50Mhz clock frequency 1hz separation, that is, the frequency of second
signal
- 一种低频信号源的源码程序 最大频率达到1mhz，设置分辨率在0.1hz 具有超出保护功-A source of low-frequency signal source program to achieve maximum frequency 1mhz, set up with a resolution in excess of the protection of reactive 0.1hz
pinlvxiangwei
- 输入两路方波信号，测量信号的频率和两信号的相位差，能显示频率值和相位差，精度：0.1Hz，0.10。在满足精度的前提下分析和证实系统的测量范围。-Two square wave input signal, measurement signal frequency and phase difference of two signals showing the frequency value and phase accuracy: 0.1Hz, 0.10. In the premise of mee
cpld
- 测量范围要求 1Hz-10MHz（输入信号幅度为0.5V-5V）。 基本性能要求 f为10MHz时，频率绝对误差不大于1000Hz； （高频精度） f小于1000Hz时，频率绝对误差不大于1Hz。 （低频精度） 提高性能要求 高频精度提高： f为10MHz时，频率绝对误差不大于100Hz。 低频精度提高：f小于1000Hz时，频率绝对误差不大于0.5Hz。 -Requirements of measuring range 1Hz-10MHz (input signal ra
Multirate
- Multirate滤波器设计。模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。-Multirate filter design. Analog bandpass signal frequency range 1KHz-1.1KHz, design a sampling frequency of 8KHz digital spectrum analysis system, required frequency resolution o
PLJ
- 测试10-260K频率计源程序，精度0.1Hz，电路简单-Test 10-260K frequency meter source, accuracy 0.1Hz, simple circuit
pinlvji
- 频率计,可测量0.1HZ到10MHZ的频率,同时还可根据按键来选择测脉宽功能,同时能显示脉宽比.-Frequency counter, measure 0.1HZ to 10MHZ frequency, but can also measure pulse width according to function keys to select the same time, showing the pulse width ratio.
18B20
- 可以测量0.1HZ到10MHZ的方波和正选波-it uses to measure frequency form 0.1hz to 10mhz
pinlvji
- 自己编的一个频率计，verilog语言写的，用数码管显示方波的频率，测量量程是0.1hz~9999999hz，测方波的稳定性极高。-Their series a frequency counter, verilog language written with the digital display of the square wave frequency, measurement range is 0.1hz ~ 9999999hz, high stability of the square w
ad9851
- 数控长产正弦波，步进可达0.1hz+1602显示其频率及VP—P-NC produced a long sine wave, step up to 0.1hz+1602 show the frequency and VP-P
Frequency-Measurement-V2.0
- 实现MSP430单片机测频，单片机需超频至12M主频，采用最常用的低频测周，高频计数方法，频率测量范围达到0.1Hz-20MHz,理论上还可以测更高频率，但是手头只有20M的信号发生器-To achieve the MSP430 MCU frequency measurement the microcontroller be overclocked to 12M clocked, the most commonly used low-frequency measurements weeks, h