exp3

非线性方程求解1--5（3） 非线性方程求解1--5（3）

QPSK误码率仿真程序，给出了比较可行，准确的方法(QPSK BER simulation program are given more feasible and accurate method)

cryptography is a technique used for decryption and encryption

史密斯圆图，并且有页面计算史密斯 的界面方面使用(Calculation of a page)

说明：  对信号进行短时傅里叶变换和小波变换，观察其时频特性，压缩包中含有需要用到的测试信号文件，可以直接运行，供参考(Carry out short-time Fourier transform and wavelet transform on the signal, observe its time-frequency characteristics, and the compression package contains the test signal files needed, which can be directly operated for reference)

用filter driver控制键盘的源代码.(filter driver using the keyboard to control the source code.)

we can use goto function in matlab.

VEanlo por ustedes mismos

运用WFRT方法进行地震射线追踪，matlab程序(the program which do run_tracing)

这个Matlab程序计算在高斯白噪声（Additive White Gaussian Channel ）下BPSK调制中的错误概率。(The Matlab procedure in the Gaussian white noise (Additive White Gaussian Channel) under BPSK modulation of the error probability.)