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dsphomework1
- 数字信号处理的应用之一是从含有加性噪声的信号中去除噪声。现有被噪声污染的信号x[k]=s[k]+d[k],式中: 为原始信号d[k]为均匀分布的白噪声。 (1)分别产生50点的序列s[k]和白噪声序列d[k],将二者叠加生成x[k],并在同一张图上绘出x0[k],d[k]和x[k]的序列波形。 (2)均值滤波可以有效去除叠加在低频信号上的噪声。已知3点滑动平均数字滤波器的单位脉冲响应为h[k]=[1,1,1 k=0,1,2],计算y[k]=x[k]*h[k],在同一张图上绘出前50点y[
IIRditonglvboqi
- 正弦信号叠加高斯白噪声,通过IIR低通滤波器,并画出时域和频域上的波形频谱图-Sinusoidal signal superimposed Gaussian white noise through the IIR low-pass filter, and draw on the time domain and frequency domain waveform spectrum
filter
- labview先产生正弦波,叠加高斯白噪声,然后通过滤波处理,回复原正弦信号,欢迎参阅。-labview to generate sine wave, superimposed Gaussian white noise, and then through the filter processing, responding to the original sinusoidal signal, please refer to.
MQAM-modulation-demodulation
- 产生一段随机四进制信号,对其进行QAM调制后,送入加性高斯白噪声信道传输,用加法运算在已调信号叠加白噪声,模拟加性高斯白噪声信道对信号传输的影响,在接收端对信号进行相应解调,并与原始信号比较计算误码率。改变误差白噪声的功率,绘制信噪比与误码率曲线。并与同组其他同学的性能曲线比较各种调制方式的性能优劣。-For some randomly generated four-band signal, after its QAM modulation, into the additive white Ga
labview
- 虚拟数字示波器,实现通道叠加,噪声叠加,多种信号波形显示-Virtual Digital Oscilloscope and achieve channel stacking, noise overlay, multi-signal waveform display
bt_sw
- 用BT法估计功率谱,原始信号为三个复正弦叠加一个复高斯白噪声-By BT power spectrum estimation
Untitled
- 模拟单边带调幅及解调产生300 ~ 3400Hz的调制信号,画出时域波形及频谱; 产生载波信号,频率自定义,画出时域波形及频谱; 产生加性高斯白噪声,画出时域波形及频谱; 单边调幅,画出叠加噪声后的调制信号和已调信号的波形及频谱; 设计滤波器,画出幅频响应图; 解调,画出解调后的信号时域波形及频谱,并对比分析。-Simulation of single sideband amplitude modulation an
xinhaofasheng
- 对叠加的信号进行显示和频谱的仿真,其中主要是对SIN信号的叠加-The signal of the superimposed display and spectrum simulation, the main signal is the superposition of SIN
Matlabmangxinhao
- 该文件能够实现盲信号的分离,分离效果很好,输入为两种信号的非线性叠加,经过仿真效果很明显!-The document can achieve blind signal separation, separation a good effect, input non-linear superposition of two kinds of signals, through simulation effect is obvious!
mangxinhaoBBS
- 该文件采用BBS算法能够实现盲信号的分离,分离效果很好,输入为两种信号的非线性叠加,经过仿真效果很明显!-The document can be achieved using BBS algorithm for blind signal separation, separation a good effect, input non-linear superposition of two kinds of signals, through simulation effect is obvious!
design
- 产生不同频率、不同幅度的两种正弦波信号 对两个信号进行叠加并做频谱分析 还原原来两个信号(LPF)-Produce different frequency, the two sine wave signals of different magnitudes of the two signals are superimposed and do spectral analysis to restore the original two signals (LPF)
addmusic
- 在matlab的环境下,运行此程序可将两段音频信号进行叠加-In the matlab environment, run this program can be two audio signals are superimposed
systems_and_siganls
- 几个正弦信号叠加,在做频谱分析,设计滤波器得到某一个频率的正弦信号-Superposition of several sinusoidal signals, spectral analysis in the design of a filter to a frequency of sinusoidal signal
MATLAB-SSB
- 基于MATLAB的 SSB调制解调实现.利用MATLAB集成环境下的M文件,编写程序来实现SSB的调制解调,并绘制出解调前后的时域和频域波形及叠加噪声时解调前后的时频波形,根据运行结果和波形来分析该解调过程的正确性及信道对信号传输的影响。-MATLAB-based SSB modulation and demodulation to achieve. Advantage of MATLAB M-files integrated environment, programming to achiev
16QAM2
- 对16QAM调制方式软解调,我们分为以下几个步骤进行: ⑴产生取值为0、1的随机数,作为16QAM调制的输入二进制序列; ⑵根据16QAM的星座图,按照输入序列分为I和Q两路进行映射,定义映射规则为00 -3,01 -1,11 1,10 3; ⑶产生一组高斯白噪声序列并分别叠加到映射后信号的实部、虚部; ⑷进行软解调。 -Soft demodulation of 16QAM modulation, we divided into the following steps: (1
数字信号MATLAB重叠相加
- 数字信号处理,重叠相加法对输入的音频信号进行平滑滤波。(Digital signal processing, overlapping addition to the input audio signal smoothing filtering.)
信号与系统应用
- 信号与系统的应用,对同一个连续周期信号,选定不同采样间隔 s T 和信号截取长度 1 T ,获得离散 信号,使用DFT或FFT 进行频谱分析,画出频谱图,与理论计算的结果进行比 较,观察: (1)不同采样率 s T 对频率范围和混叠误差的影响; (2)不同采样长度 1 T (单周期采样和多周期采样)对频率分辨率的影响; (3)是否完整周期采样对泄漏误差的影响,多周期采样是否可以减小非完整周 期采样产生的泄漏误差。 以下信号中叠加了一个角频率为50 ? 的高频干扰信号,信号如下: 3 (
utlsound
- 用于超声数据信号分析,将所得波形取正数后,比较移位信息(For ultsound information)
xiebodiejia
- 谐波叠加程序,用于两个或两个以上的谐波信号进行叠加的仿真(A superposition program used to simulate the superposition of two or more than two harmonic signals)
gaosi
- 采用直接法或间接法(通过自相关函数)编制matlab程序,计算信号cos(2πf1t)+cos(2πf2t)叠加高斯白噪声后的功率谱密度。(Matlab program is compiled by direct method or indirect method (through autocorrelation function) to calculate the power spectral density of signal cos (2 PI f1t) +cos (2 PI f2t) s