earth_quake_forcast

不错的matlab电子书，不错的matlab电子书，(Matlab good books, good books matlab,)

说明：  伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)

MATLAB Binary Frequency Shift Keying

一个通用的matlab程序 小波神经网络(A common procedure matlab wavelet neural network)

Iterative closest poin in MATLAB

自适应陷波，参数可调，迭代达到最理想效果(Adaptive notch, adjustable parameters, the iterations to achieve the best results)

扩展卡尔曼滤波程序，C语言仿真。包括卡尔曼滤波简介及其算法实现代码。(EKF simulation)

Implementacao da rede MLP canonica (backpropagation com gradiente descendente) beleain

GMSK信号调制和解调的仿真代码，包含一比特差分、2比特差分、鉴频等常用GMSK解调方案.之前上传的GMSK Modem差分相干、2比特差分解调存在问题。(GMSK demodulation schemes including one bit differential decoding, two bit differential decoding, differential coherent and digital frequency discriminating methods.)

OFDM信道估计的相关介绍，对于入门相当有利(OFDM channel estimation related presentations, very favorable for the entry)