dim_reduction

l_curve.m L曲线准则。。。。。。。。。。(l_curve.m L_curve principle............)

简要介绍了MATLAB语言，并把MAT LAB语言应用于电机控制系统的仿真研究中，同时以一个 具体实例较为深人地对其进行了说明(Briefly describes the MATLAB language, well into MAT LAB language used in motor control system simulation studies, in both a Specific examples of a more in-depth to them to say the-called)

录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 (Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))

matlab simulation program for ASK

相当好的源代码，很有用，值得收藏，多用于图像拼接(Very good source code, useful, worthy of collection, used for image mosaic)

说明：  采用matlab产生信号波形，实现QPSK编码。(Waveforms generated by matlab to achieve QPSK encoding.)

光伏并网lcl滤波器，可以进行仿真有波形 (Photovoltaic lcl filter, the waveform can be simulated)

LTE系统中误块率BLER的求解计算，BLER是个衡量系统好坏的正确指标(LTE system for solving block error rate BLER calculation, BLER measurement system is good or bad right index)

wm implementation code

sperical array in antenna and radar application