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- 使用89C51单片机制作简易信号发生器，可以实现4种波形。正弦波，锯齿波，方波，三角波。信号频率1HZ—10KHZ-Use 89C51 microcontroller production of simple signal generator, can achieve four waveforms. Sine, sawtooth, square, triangle wave. Signal frequency 1HZ-10KHZ
zpqm
- 频率计，基本设计原理是直接用十进制数字显示被测信号频率的一种测量装置。它以测量周期的方法对正弦波、方波、三角波的频率进行自动的测量。-Frequency meter, the basic design principle is directly with decimal digital display measured signal frequency of a measuring device.It with the method of measuring cycle of sine wave
AD9959
- 51控制的ad9959信号发生器源程序，输出四路正弦信号，频率，相位，幅度可调-four channel sin wave generator
F2812_AD_SCI_FFT
- 基于TMSF2812，外部输入正弦信号，经AD采样，利用FFT辨识出频率和幅值，通过SCI发送至串口超级终端-Based TMSF2812, external input sinusoidal signal, the AD sampling, using FFT identify the frequency and amplitude, is sent to the serial port by HyperTerminal SCI
chap3_3_20_1_2
- 给出复正弦加白噪声随机过程u(n),使用ROOT-music方法进行信号频率估计的仿真实验-Given the complex sinusoidal added white noise random process u (n), use the ROOT- music method is used to estimate signal frequency simulation experiment
P84li3.1
- 通过给出的随机过程，该随机过程是由3个实正弦信号组成，归一化频率分别为0.1,0.25,0.27，其中相位是相互独立在【0,2*pi】上分布的随机相位；噪声是均值为0、方差为1的实高斯白噪声，信噪比为30db,30db,27db,观测样本数为N，通过bartlett法，Welch法，周期图法计算随机过程的概率谱-Given by stochastic process, the stochastic process is composed of three real sine signal, th
freq
- 使用最小二乘法、最大似然法、奇异值分解法估计信号中正弦分量频率的python代码。可用于频率追踪。- Using a least squares method, maximum likelihood method, singular value decomposition method to estimate the signal frequency sinusoidal component python code. It can be used for frequency tracking
timeFrequency
- 多频率正弦信号的生成，及其频域分析。含有详细注释。-Multiple frequency sinusoidal signal generation, and the frequency domain analysis.Contains detailed comments.
sineWaveGenerator
- FPGA生成高质量400Hz正弦信号的代码，可调节信号频率、初相位及信号质量-FPGA generated code 400Hz sinusoidal signal quality, signal frequency can be adjusted, and the initial phase of signal quality
xcorr
- 原信号s1为正弦信号，原信号s2为频率相同的另一正弦信号； 对s1、s2分别加噪声n1、n2得到信号x、y； 对加有噪声的x做自相关函数估计原信号； 对加有噪声的x、y做互相关函数估计原叠加信号。-The original signal s1 is a sinusoidal signal, the original signal s2 is another sinusoidal signal with the same frequency On s1, s2 were adde
DDS
- DDS的字长决定了正弦/余弦基准信号样点的个数和所产生频率信号的量化精度。 最小频率间隔决定了DDS所能产生信号的最小频率。DDS所产生信号的频率为最小频率间隔的整数倍。(The word length of the DDS determines the number of sample points of the sine / cosine reference signal and the quantization accuracy of the generated frequency si
sinewave
- 正弦波是频率成分最为单一的一种信号，因这种信号的波形是数学上的正弦曲线而得名。任何复杂信号——例如音乐信号，都可以看成由许许多多频率不同、大小不等的正弦波复合而成。(Sine wave is the most single frequency components of a signal, this signal waveform is the sine curve on the mathematics of the name.Any complex signals, such as music
frequency（PA0）
- 频率计的基本原理是用一个频率稳定度高的频率源作为基准时钟，对比测量其他信号的频率。通常情况下计算每秒内待测信号的脉冲个数，此时我们称闸门时间为1秒。闸门时间也可以大于或小于一秒。闸门时间越长，得到的频率值就越准确，但闸门时间越长则没测一次频率的间隔就越长。闸门时间越短，测的频率值刷新就越快，但测得的频率精度就受影响。本文数字频率计是用数字显示被测信号频率的仪器，被测信号可以是正弦波，方波或其它周期性变化的信号。如配以适当的传感器，可以对多种物理量进行测试，比如机械振动的频率，转速，声音的频率以及
PLL_D
- 用51单片机控制锁相环PLL输出不同频率的正弦信号(The phase-locked loop PLL is controlled by 51 single-chip microcomputer to output sinusoidal signals of different frequencies)
9-1
- 可以产生正弦波、方波、三角波、锯齿波，并设置幅度、频率、偏移、占空比。(Sine wave, Fang Bo wave, triangle wave and sawtooth wave can be generated, and the amplitude, frequency, offset and duty ratio are set.)
fft4
- FFT及IFFT算法的C语言实现，信号发生器产生的正弦信号在通过该算法可以准确算出频率(The implementation of the FFT algorithm in the C language)
fft5
- FFT及IFFT算法的C语言实现，信号发生器产生的正弦信号在通过该算法可以准确算出频率，计算耗时较短。(The implementation of the FFT & IFFT algorithm in the C language,After testing,the results are reliable.)
PLL
- 一个基于二阶广义积分器的锁相环仿真模型，可以测得三相正弦信号的相位和频率(Phase-locked loop simulation model based on Nikai Hiroyoshi integrator)
DDS30k
- 在quartus开发平台基于直接数字频率合成技术利用Verilog语言实现正弦信号和三角波信号发生(Verilog was used to generate sine and triangle wave signals based on direct digital frequency synthesis in quartus development platform.)
虚拟频谱分析仪设计
- 设计的虚拟频谱分析仪由周期性信号发生器、信号幅频/相频特性、频谱分析结果三个子模块组成。信号发生器子模块生成两路模拟输入信号，一路是可调频率、相位和振幅的正弦信号、方波、三角波、锯齿波、白噪声，另一路是指可调频率、相位和振幅的正弦波、方波、三角波、锯齿波、白噪声，最后利用信号合成器把两路信号混合起来作为生成的2路模拟信号(The designed virtual spectrum analyzer consists of three sub modules, which are periodic