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用matlab编写的正交相移调制，已通过测试，可以运行(QPSK)

qpsk调制解调，功率谱密度，误码率曲线，和MPSK的比较(qpsk modem, power spectral density, the error rate curve, and comparison of MPSK)

雷达回波，线性调频信号，数字下变频，匹配滤波(Radar, chirp signal, digital down conversion, matched filtering)

Simplicity code for heart sound

Solver optimization non constrained function

此源码构建的模型是基于MATLAB平台，采用bragg结构，高效率发光管的光学结构设计。分别给出p波和s波的分量。(Construction of this source model is based on the MATLAB platform, using bragg structure, high efficiency LED optical structure design. Were given p-wave and s-wave component.)

video demonstration a a a

设计的软件锁相环的例子，自己写的，根据原理编的(PLL design example of software that he wrote, according to the principle for the)

说明：  matlab算法集 matlab算法集 (matlab algorithms algorithms matlab)

说明：  《先进PID控制 MATLAB仿真(第二版）》一书的源程序("advanced PID control MATLAB (2nd edition)," a book of the source)