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完整版的频谱检测算法的MATLAB实现，有原理，有程序，有结果。(Full version of the spectrum to achieve detection algorithm of MATLAB, there are principles, procedures and results.)

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：  岭回归的matla源程序，主要用于解决无法求逆或需要更好的解时所用的(Ridge regression matla source, mainly used to solve the inverse can not be a better solution or need to use when)

永磁同步电机矢量控制,稍微欠缺,速度跟踪不是很好，一起交流(Permanent magnet synchronous motor vector control, a little lack of speed tracking is not very good, with the exchange)

滑膜模型的建立 多输入多输出非线性化的系统线性化程序(sliding model design linearization)

光纤光栅梳状滤波器相关matlab程序，对通信专业本科毕业论文很有帮助(Fiber grating comb filter correlation matlab procedures, communications professional undergraduate thesis helpful)

THIS DOCUMENT CONTAINS A MATLAB TUTORIAL WICH CONTAINS MANY FUNCTION

基于matlab程序对矩阵转置编写的程序，对于矩阵转置很有帮助(Matlab program based on programs written in matrix transposition, matrix transpose for helpful)

高数书上的数学实验，要求使用mathmatic做的(High number of books on mathematics test, do require the use of mathmatic)

用滤波器祛除图象噪声，matlab环境运行(Eliminate the image noise with filters, matlab environment running)