voicebox

FS_IOC_FIEMAP ioctl infrastructure.

风光混合储能的生命周期费用考虑包括蓄电池、超级电容器的生命周期费用，(Life cycle cost considerations for landscape hybrid energy storage include life cycle costs for batteries and supercapacitors.)

1 gaussian random variable generation and plotting using matlab code

人脸识别的pca算法,可以运行，是源代码(Face recognition pca algorithm, you can run source code)

产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2； 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50 ，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列） 改用HDB3码，画出前20个符号对应的波形 改用密勒码，画出前20个符号对应的波形 分别对上述1000个符号的波形进行功率谱估计，画出功率谱 改变信源“0”的概率，观察AMI码的功率谱变化情况(A length of 1000 random binary sequence, and " 0" with a probability of 0.8, " 1" with a probability of 0.2 the AMI code above zero, the pulse width of the symbol width of 50 , the waveform sampling rate Symbol rate 8 times, draw the top 20 of the waveform corresponding to the symbol (the first 20 and gives the source sequence) switch HDB3 code, the first 20 to draw a waveform corresponding to the symbol to switch Miller code, the first 20 symbols correspond to draw The waveforms of the symbol of the waveform 1000 power spectrum estimation, shown to change the source power spectrum " 0" , the probability of observation of the power spectrum of AMI code changes)

利用matlab 仿真 ofdm 通信系统(ofdm by matlab)

说明：  FGDFJSDVKJWBLVWBVWKEVNWEJKVWqleK

清华大学研究生教学用书，作者：胡广书《数字信号处理:理论算法与实现》一书附属光盘。(Qinghua University graduate teaching book, the author : Mr. Kwong book "Digital Signal Processing : theoretical algorithm with the realization of "a book subsidiary CD.)

单频估计kay算法的仿真源程序，系统为QPSK调制，信道为高斯白噪声信道。(Single frequency estimate kay algorithm simulation source code, the system is QPSK modulation, the channel is Gaussian white noise channel.)

dsb编程，速度较快，效果较好，易于实现，调制效果可以(dsb programming, faster, better, easy to implement, modulation effects can be)