dataacquire

很好的matlab学习资料，由浅到深的解析，附带源码(Matlab good learning materials, from shallow to deep analysis, with source code)

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

说明：  数据通道剥离伪码后的载频估计,数据通道剥离伪码后的载波估计问题。对直接序列扩频系统的数据通道，假定接收设备已“完美”地锁定接收信号伪码，并实现了伪码剥离其中，信号幅度、电文、载波多普勒和载波相位均未知。电文的速率为10Hz。由于信源与接收端信号传输时延的不确定性，收到的信号电文是从某个未知时刻开始的。 利用数据文件 估计信号幅度、载波多普勒和载波相位(Data channel after stripping pseudo-code carrier frequency estimation)

贝叶斯估计，最小二乘法，递推最小二乘法，梯度校正法，增广最小二乘法进行系统辨识(Bayesian estimation, least squares, recursive least squares method, the gradient correction method, the augmented least squares method for system identification)

说明：  fsk程序matlab实现fsk(fsk procedures matlab achieve fsk)

JPEG2000 dwt matlab code I want to be uploaded

里面含有飞机设计制造等方面的多个源码，可以仔细体会，为设计工作提供帮助。(there are some original programme in this file .it can be used to study the design of plane.)

二分法和牛顿法的matlab源代码，图像比较(Dichotomy, and Newton method matlab source code, including images )

自己编写的matlab程序 数值分析里的程序(I have written procedures for numerical analysis matlab s procedures)

整数规划（Integer programming）分支定界法 二次规划（quadratic programming）路径跟踪法(Integer programming (Integer programming)branch and bound method quadratic programming (quadratic programming)the path tracing method)