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周期矩形脉冲函数的合成
- 介绍周期矩形脉冲函数的合成,可以很开的合成脉冲函数-introduced cycle rectangular pulse function synthesis, can open the synthetic pulse function
周期T=5,脉宽tao=1的矩形脉冲及频谱图
- 周期T=5,脉宽tao=1的矩形脉冲及频谱图-cycle T = 5, pulse width = tao a rectangular pulse and the spectrum
用FFT分析周期矩形脉冲及其频谱
- 用FFT分析周期矩形脉冲及其频谱, 这是计算周期矩形脉冲双边频谱的程序。-using FFT analysis cycle and rectangular pulse spectrum, which is calculated cycle rectangular pulse spectrum of bilateral procedures.
rectangle_pulses_ambig.rar
- 矩形脉冲串信号的模糊函数matlab代码,Rectangular pulse function of the fuzzy matlab code
MPSKMQAMmudulation.rar
- 本程序用于完成BPSK、QPSK、pi/4QPSK、OQPSK、8PSK、16QAM、32QAM、64QAM和128QAM的调制仿真。并可任意扩展到MPSK和MQAM。程序分成四个部分,fir.m对基带码元序列进行脉冲成型,可选矩形脉冲,升余弦脉冲和平方根升余弦脉冲; modal.m 为主程序,完成岁各种信号的基带星座图映射、脉冲成型和调制;pi4QPSK.m 为pi/4QPSK信号的星座图映射程序;test1.m给出一个简单的频谱显示测试。,This procedure for the com
AmbiguityFunction
- 建立并绘制任意信号的模糊函数。已在巴克码,线性调频,脉冲信号中测试过。-This program estimates and plots the ambiguity function for any signals. I have tested it for the Barker code, chirp signal, pulse signal. for good results the length of the input vector (Ut)should be more than 7.
signal_ambiguity_function
- 这个源码可以分析绘制多种信号的模糊函数,已经试验过巴克码,线性调频信号,脉冲信号等-Descr iption: This program estimates and plots the ambiguity function for any signals. I have tested it for the Barker code, chirp signal, pulse signal. for good results the length of the input vector (Ut)sho
single_rectangle_pulse_ambig
- 单个矩形包络脉冲信号的模糊函数的matlab代码-Envelope of a single rectangular pulse signal ambiguity function of matlab code
FFTshow
- 可产生矩形脉冲和正弦信号,矩形脉冲的脉宽可以改变,正弦信号则可以改变频率和时宽-Can produce rectangular pulse and sinusoidal signal, the rectangular pulse width can be changed, sinusoidal signal can be changed when the frequency and width
pulse
- 通过输出矩形波来控制外部电机的运行。 5,3串口输出-Through the rectangular-wave output to control external motor. 5,3 serial output
MPSKTransmissonwithGausNoise
- 本程序用于完成BPSK、QPSK、8PSK的调制仿真。并可任意扩展到MPSK和MQAM。程序分成三个部分:phase.m对基带码元序列进行脉冲成型,可选矩形脉冲,升余弦脉冲和平方根升余弦脉冲; model.m 为主程序,完成各种信号的基带星座图映射、脉冲成型和调制; command.m给出一个简单的频谱显示测试。-This procedure for the completion of BPSK, QPSK, 8PSK modulation simulation. Arbitrary and m
script_ber_msk_awgn
- Minimum Shift Keying (MSK), uses two frequencies which are separated by 1/2T and phase discontinuity is avoided in symbol boundaries. Further, MSK transmission can also be visualized as a variant of offset-QPSK technique, where sinusoidals are used f
baseband_detection_simulink
- In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying
HarmonicAmplitudeOfTheWaveformSynthesis
- 谐波幅度对波形合成的影响 一个幅度为E,脉冲宽度为τ,重复周期为T的矩形脉冲信号,实验内容为用前5项谐波近似合成一方波。先画出基波分量;然后将三次谐波加到基波上,并画出结果;再将一次、三次、五次、七次和九次谐波加在一起;将上述波形分别画在一幅图中,可以看出它们逼近方波的过程。注意“吉布斯现象”。周期信号傅里叶级数在信号的连续点收敛于该信号,在不连续点收敛于信号左右极限的平均值。如果我们用周期信号傅里叶级数的部分和来近似周期信号,在不连续点附近将会出现起伏和超量。在实际中,如果应用这种近似,就
IIRButterworthfilter.m
- scr ipt to design an IIR Filter low pass using Butterworth & lineal transformation to convert from analogic to digital a prototype filter. by actinio vjgonzalezg@gmail.com :) It plots: 1-Frecuency response of the filter imp
PWM
- PWM原理 2、调制器设计思想 3、具体实现设计 一、 PWM(脉冲宽度调制Pulse Width Modulation)原理: 脉冲宽度调制波通常由一列占空比不同的矩形脉冲构成,其占空比与信号的瞬时采样值成比例。图1所示为脉冲宽度调制系统的原理框图和波形图。该系统有一个比较器和一个周期为Ts的锯齿波发生器组成。语音信号如果大于锯齿波信号,比较器输出正常数A,否则输出0。因此,从图1中可以看出,比较器输出一列下降沿调制的脉冲宽度调制波。 -PWM principle 2
The-pulse-signal-generator
- 脉冲信号发生器:采用DDS技术实现脉冲信号的周期、脉冲宽度、幅值的数控调节。通过单片机与FPGA的并行通信技术将频率控制字及矩形脉冲数据传送给FPGA的双口RAM。模拟输出通道则将信号通过100MHz、8位D/A转换器将波形数据转换成模拟脉冲信号,最后通过高速运放构成的放大器放大,实现幅度连续可调。-The pulse signal generator: using the DDS technology to achieve the pulse signal cycles, pulse widt
pulse-generate
- 本程序是矩形波的产生。第零步定义了要产生的波形的所有特征参数,矩形波的持续时间WIDTH,矩形波的采样点数POINTS,载波频率为F0,这个频率的最终引入是便于使用RF频率发射波形。第一步包括产生矩形波,并将其调制到RF上,注意,产生的信号的持续时间是矩形波宽度的5倍,这样,总的采样点数就是5*POINTS。同时还应注意,如果要产生一个基带信号,必须设置T0=0.第二步是画出所产生矩形波的源代码。- This procedure is rectangle wave production. Ste
m
- m序列发生器及其自相关 m序列构成的信号(矩形脉冲) m序列sinc成形信号的自相关-m-sequence generator and its associated m-sequences formed from the signal (rectangular pulse) m sinc sequence forming signal autocorrelation
Cycle_rectangular_pulse_spectrum
- 连续时间周期矩形脉冲信号的频谱分析、合成的MATLAB程序代码,占空比为1/5、T1=5s。 -Continuous-time periodic rectangular pulse signal spectral analysis, synthesis of MATLAB code, the duty cycle of 1/5, T1 = 5s.