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SPECtRUM_LMS
- 1、文件夹中包含了经典功率谱估计和自适应均衡算法两个实验的所有程序。 2、R.m、LMS.m、LMSmain.m为自适应均衡算法的程序: R.m用来计算输入信号的自相关矩阵及其特征值; LMS.m为时域LMS算法,用统计的方法仿真得出不同信道参数和不同步长下的学习曲线; LMSmain.m为实验主程序,按照实验要求中的具体数据得到实验结果和曲线。 3、functionx.m、fzhouqitu.m、spectrum.m、bt.m、bart_lett.m、welch.m、SPE
pudn2
- 一般来说,瞬时频率和群延迟在时频平面内定义了两条不同的曲线,但是在时宽(t)和频宽(B)的乘积值逐渐变大时,这两条曲线会慢慢逼近。为了说明这一点,下面计算了信号的瞬时频率和群延迟,t*B值大。-Generally speaking, the instantaneous frequency and group delay in the time-frequency plane defines two different curves, but when the width [t] and band
pudn3
- 一般来说,瞬时频率和群延迟在时频平面内定义了两条不同的曲线,但是在时宽(t)和频宽(B)的乘积值逐渐变大时,这两条曲线会慢慢逼近。为了说明这一点,下面计算了信号的瞬时频率和群延迟,t*B值小。- In general, the instantaneous frequency and group delay in the time-frequency plane defines two different curves, but when the width [t] and bandwidth
matlabxueqi
- 小学期的源程序 1.试编MAtLAB程序。信号 sinc(10*t),-2<=t<=2 m(t)= 0,其它 用100hz的载波来产DSB信号并解调。完成下列工作: 画出已调信号; 求已调信号的频谱,并用图像表示。 画出解调信号; 求解调信号的频谱,并用图像表示。 2.信号 sinc2(100t),|t|≤t0 m(t)= 0, 其它 采用频率调制调制为1000HZ的载波。频偏常数为kf=50,t0=0.2
band_pass_signal_simulation
- 这是个带通信号仿真调制代码,画出带通信号X(t)的幅度谱,带通信号X(t)的包络波形等。-this is a simulation of bandpass modulation code, and draw the bandpass signal X (t) the amplitude spectrum, bandpass signal X (t) the envelope waveform.
NMFLABIP_ver1.2
- n this group, we have three different algorithms. they are able to process in sequential and simultaneous mode. More detail in choosing reference signals could be found in the tips section. the extracted signals have available forms of references. It
strech
- 去斜率(strech)参考信号与回波信号混频后得到中频输出信号S(t)=Aexp(j*2*pi*f0*t+phase) 其中f0与回波延时的关系为: f0=k*delay_t K为线性调频斜率,delay_t为回波延时 将s(t)采样,FFt变换即可得到目标距离与频谱的关系。 Strech 信号测距 输入混频后的中频信号(图一),经采样及FFt变换得到频谱(图二) 再根据频谱与距离的关系式R=tcf/2B显示出距离(图三) -Go slope (strech
t-REC-P.563-200405-I!!SOFt-ZSt-E
- ItU P.563 voice quality assessment, you can only send the signal distortion, without the need for reference signals, they can evaluate the distortion of the signal sub-MOS
smart-antenna
- smart antenna. WS=Z where Z=[1 0 0..]t & S is the stearing vector.Find W? StEP1:Input Number of Array Elements, the Separation Distance Between Elements, the Operation Frequency, the Angle of Incidence of the Desired Source signal , the Angle of
激光自混合微位移测量的FFt相位提取方法_张照云
- 提出一种基于快速傅里叶变换( F F t)提取相位的方法, 分析自混合干涉信号, 不增加系统复杂度就能将激光自混合( SM LD) 微位移测量精度提高到纳米量级。(A phase extraction method based on F F t is proposed. the self mixing interference signal is analyzed, and the accuracy of the self mixing (SM LD) micro displacement me