Lyapunov

basic codes for filter design using matlab

说明：  圆拟合，通过已知的多组数据，拟合出最小误差的圆(Given a set of measured x,y pairs that a re supposed to reside on a circle, but with some added noise. A circle to these points, i.e. find xc,yc,R, such that (x-xc)^2+(y-yc)^2=R^2)

建模用函数，专门为准备数学建模的同学学习参看的源代码。(Modeling with function, specifically in preparation for the mathematical modeling of students learning to see the source code.)

生成伪随机序列调相的回波信号的速度模糊函数(generate M sequence echo signal s ambigures function)

觉得很好的一个Matlab程序想和大家一起分享，互相学习。(A Matlab program feel good and you want to share, learn from each other.)

BER verses SNR in ofdm with amplifier: The BER performances of OFDM systems over the AWGN channel are given by the BER where N=512. We see that SNR required for BER=10-3 No channel coding scheme is adopted. Therefore, BER is a bit higher. The results with 16 QAM show that the required Signal to Noise Ratio (SNR) for BER=10-2 is almost the same. This is because the noise is the dominant.

说明：  两个序列的互相关函数的归一化运算。 先生成两个序列，再调用。(cross-correlation function)

第三版天线经典教材的源代码，让大家一起学习了！！！！(Third edition of the antenna, the source code of the classic textbook, so that we learn together! ! ! !)

语音的端点检测 噪声可以自己加 使用阈值进行检测 能量的阈值跟据经验来进行决定(Speech endpoint detection noise can add to the threshold detection energy threshold according to experience to the decision)

this code was development by George christakos, Serre, M and Patrick Bogaert for implement the Bayesian Maximun Entropy Approach to enviromental and physical mapping research