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波形的合成与分解。
用matlab编的。可以合成三角波,方波,并分析它们的频谱。有详细的说明。,Synthesis and decomposition of waveforms. Made use of matlab. Can be synthesized triangular wave, square wave, and an analysis of their spectrum. Is described in detail.
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1.用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图
2.进行FFT变换,显示各自频谱图,其中采样率,频率、数据长度自选
3.做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱
4.用IFFT傅立叶反变换恢复信号,并显示恢复的正弦信号时域波形图
,1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their
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matlab用于信号发生器产生波形,正弦波,方波等,matlab for the signal waveform generator, sine wave, square wave, etc.
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用Matlab产生正弦波,矩形波,以及白噪声信号,并显示各自时域波形图,FFT实践及频谱分析-Matlab generated by sine wave, square wave, and the white noise signal, and display their time-domain waveform, FFT spectrum analysis of practice and
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使用FFT分析方波信号的频谱,讨论采样点数、采样频率对谱分辨率的影响。对数据叠加白噪声后再次分析实验结果。-Square-wave signal using the FFT spectrum analysis to discuss the sampling points, the sampling frequency of the impact of spectral resolution. White noise superimposed on the data after analysis
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针对离散系统的阶跃信号、正弦信号和方波信号,设计离散PID-Step for the discrete-time systems signal, sinusoidal signal and the square wave signal, the design of discrete PID
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elman神经网络用于峰值检测 三角波 矩形波 方波调制信号 -elman peak detector neural network for rectangular-wave square wave triangle wave modulation signal
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函数信号发生器 可产生方波,三角波,正选拨,用示波器观察-Function signal generator can produce square, triangle wave, is selection, using the oscilloscope observation
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square wave by sine wave
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語音信號是基於時間軸上的一維數位信號,在這裏主要是對語音信號進行頻域上的分析。在信號分析中,頻域往往包含了更多的資訊。對於頻域來說,大概有8種波形可以讓我們分析:矩形方波,鋸齒波,梯形波,臨界阻尼指數脈衝波形,三角波,餘旋波,余旋平方波,高斯波。對於各種波形,我們都可以用一種方法來分析,就是傅立葉變換:將時域的波形轉化到頻域來分析。-Voice signal is based on the timeline of one-dimensional digital signal, where mai
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基于Matlab6.5的 声卡数据采集程序 可以简便的进行方波 曲线信号的采集-Sound card Matlab6.5 based data acquisition program can be simple square wave signal acquisition curve
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利用Matlab生成GPS C/A 码的基带信号。
(1)产生卫星PRN 号码为“5”的一组C/A 码;
(2)循环生成25 页的导航数据,GPS 时间可填入一固定的已知数值;
(3)生成C/A 码扩频信号,每个C/A 码码片给出4 个采样数据;
(4)基带信号采用方波信号,电平为0 和1,占空比为50 %,不加入噪声,进一步生成某个特定的中频信号。-Matlab generated using GPS C/A code base band signal. (1)
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BOC调制,原始信号扩频之后与方波相乘,使得频谱分裂,抗干扰能力很强!-BOC modulation, spread spectrum, after the original signal multiplied with the square wave, making the spectrum division, a strong anti-interference ability!
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用MATLAB编程产生方波信号序列s[n],产生幅值为6,频率为0.125kHz的方波信号,-Square wave generated by MATLAB programming signal sequence s [n], generating amplitude 6 and frequency square wave signal for the 0.125kHz,
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:SPWM调制技术是通过改变输出方波的占空比来改变等效的输出电压,其调制波为正弦波,脉冲宽度间占空
比按正弦规率排列, 这样输出波形经过适当的滤波可以做到正弦波输出。它广泛的用于支流交流逆变器。本次实
验使用Matlab/Simulink对SPWM技术进行仿真并分析数据。-: SPWM modulation by changing the duty cycle square wave output to change the equivalent output voltage, the
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方波及其频谱;钟形波及其频谱;单指数衰减波及其频谱-Square-wave and its frequency spectrum bell-shaped wave and its spectrum single exponential decay wave and its spectrum
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2ASK(1)通信系统仿真进行2ASK调制,其中基带信号为单极性NRZ矩形波,采用相干解调方法对带通滤波器的输出信号进行解调;-2ASK (1) 2ASK modulation for communication systems simulation, in which the baseband signal is unipolar NRZ square wave, coherent demodulation method using band-pass filter output signal
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本文介绍了基于MATLAB软件在《信号与系统》课程教学中的仿真实验,通过抽样信号的表征、周期方波信号的傅立叶级数分解与合成、余弦信号的相加与相乘、RLC带通滤波器的频率特性等仿真实验,说明了将MATLAB应用于教学实践中的重要作用和意义。-This article describes the MATLAB-based software in the " Signals and Systems" course teaching simulation, by sampling th
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its an matlab simulink model of inverter with Resistive load and it generates square wave at output with 5o Hz frequency.
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Square wave in matlab
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