lbm1

说明：  定义了一种调制信号，使用时可以直接调用该信号(mpsk)

说明：  基于半比特反转的GPS信号捕获。实现数据剥离，能够完成长时间的相关积分(GPS-based semi-Bit reversal signal acquisition. Data stripping, a long time to complete the relevant points)

介绍matlab综合应用以及部分实例，让读者理解matlab(Introduction matlab applications as well as some examples)

说明：  韩京清老师提出的微分跟踪器离散形式，采用simulink中S-function实现的程序(Han Jingqing teacher proposed differential tracker, using matlab simulink realization of the program in)

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

说明：  matlab实现的数字水印，经验证能够实现(matlab implementation of digital watermarking, proven to achieve)

产生16路信号，画出16路原始信号的频谱叠加图以及滤波器响应，并画出结果信号的时域和频域波形(Generate 16-channel signal, draw 16 original signal spectrum overlay and a filter response, and draw result signals in time domain and frequency domain waveforms)

【matlab编程代做】matlab希腊人的3D图 可以作为参考使用学习([Do] matlab matlab programming on behalf of the Greeks 3D map can be used as a reference study)

这是一个pca提取特征的小程序，是应用matlab语言进行编写的，适用于初学者。(This is a small programs characteristics extracted pca this is a small characteristics extracted pca program, application of matlab language is written, it is suitable for beginners. )

PCA Based implementation souce code