QPSK

log4j的配置文件！可以很好的配置log4j的程序，是一个标准模板(log4j configuration file! Log4j configuration can be a very good program, is a standard template)

color space converter

Basic adaptive signal processing methods

基础的音频处理matlab程序，设计巴特沃斯低通数字滤波器实现滤波。(Matlab-based audio processing procedures, Butterworth low-pass digital filter designed to achieve the filtering.)

Design a linear phase minimum order FIR Band Stop filter to stop the frequency band 0.45π to 0.55π with atleast 60dB attenuation at the edges. Further -3dB frequencies are required to be at 0.3π and 0.7π. 1. Plot the frequency response of the psuedo magnitude function using (a)rectangular window, (b)Hann window and (c) Hamming window. 2. Plot the frequency response for Rectangular and Hamming window for a length of 1024 to demonstrate the fact that the increase in the length, doesn t reduce undershoot and overshoot in Rectangular window.

QPSK高斯噪声信道下的星座点和比特误码率仿真曲线(QPSK constellations point under gaussian noise channel and the bit error rate curve simulation)

This submission contains an interface to a LBFGS-code for unconstrained minimization problems of the form min_{x} f(x) + c*| ilde{x}|, where x are the parameters, f is a scalar valued real function, c is a positive scalar (default value=0), |.| denotes the 1-norm, and ilde{x} is some subset of the parameters x.

基于Matlab的小车停车位模糊控制模型，通过使用Matlab工具箱中的模糊控制工具箱设计了将小车安全可靠地停到划定的停车位置上。(Matlab-based fuzzy control model of car parking spaces, by using the Matlab toolbox in the fuzzy control toolbox designed to stop the car safely and securely to the designated parking position.)

关于指纹识别的一些利用matlab进行图像预处理的源程序(Some of the use of fingerprint matlab source code for image preprocessing)

选择13级移位寄存器的初始数据，用移位加反馈的方法生成级数为3~13的m序列(The selection of the initial data of 13 level shift register, series is generated by shift plus feedback method for 3 ~ 13 m sequence )