QPSK_OFDM_simulink

S7-200 PLC 的初步设计及编程技巧，适合初学者使用。(S7-200 PLC preliminary design and programming skills, suitable for beginners to use.)

这是一个云台控制的软件，我只是实现了上下左右，自动几个功能，为了测试用，不过可以调通。(This is a PTZ control software, I just realized vertical and horizontal, automatic several functions, in order to test, but can be transferred through.)

说明：  QPSK的MATLAB实现包括发送数据、QPSK比特映射、成型滤波、载波调制、载波解调、收成型匹配、IQ抽样判决、接收比特数据恢复8个模块(The MATLAB implementation of QPSK includes eight modules: sending data, QPSK bit mapping, shaping filtering, carrier modulation, carrier demodulation, shaping matching, IQ sampling decision and receiving bit data recovery.)

说明：  单频信号经过多径时变信道后，输出信号的包络随时间随机起伏，输出信号的频谱从冲激谱变成一个窄带频谱。径数位20，变化频率从0—2HZ随机均匀抽取。(Single-frequency signal through time-varying multipath channel, the output signal envelope random fluctuations over time, the output signal from the impulse of the spectrum into a narrow-band spectrum spectrum. Digital Drive 20, changes in frequency from 0-2HZ uniform random samples.)

Blob Test extends SQLite Test Source Code for Andriod.

这个程序采用现代谱估计的ARMA参数模型算法对信号的功率谱做了估计(The program uses the ARMA parameter model algorithm of modern spectral estimation to estimate the power spectrum of the signal.)

一个sir建模的matlab程序。希望对大家有用(one sir modeling programm written by matlab, hope for everyone using)

降低OFDM系统峰均比的PTS算法源码，经过MATLAB仿真成功(Reduce the PAPR of OFDM system PTS algorithm source, after the success of MATLAB simulation)

用于检测手机麦克风输入音量大小的DEMO(it s used to detect the volume of phones micphone)

关于阵列信号处理窄带DOA估计的MATLAB仿真程序，用于学习比较（Capon,convention,MUSIC,DML）(Narrowband array signal processing for DOA estimation of the MATLAB simulation program for learning more (Capon, convention, MUSIC, DML))