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Study of Digital Modulation Schemes using DDS(Study of using Digital Modulation Schemes DDS)

利用matlab编程实现小车速度的互相关算法，完整。(Using matlab to realize vehicle speed cross-correlation algorithm, a complete.)

说明：  matlab语音采集 语音采集信号 时域 频域分析(matlab voice collecting voice collecting signals frequency domain analysis)

论文以增加频率变化率和波达角变化率两个观测量的定位与跟踪方法为基础，讨论其 定位与跟踪算法、频率变化率精确估计、波达角及其变化率的精确估计三个方面的关键技 术。(Paper to increase the frequency rate and the rate of change of direction of arrival of two measurements with positioning and tracking method based on discussion of positioning and tracking algorithm, the frequency change rate of accurate estimates of arrival angle and its rate of change of the accurate estimation of three key technology.)

How to embedding binary image in digital audio & how to extract that binary image

高斯拟合。。。。。。。。。。。。。。。。。。。。。。。(gaussian fitting。。。。。。。。。。。。。。。)

论述了风力发电并网的PLL技术，基于传统PI-PLL技术基础上，以双同步旋转坐标系建立电网电压不平衡的数学模型。(mbalance of power grid voltage phase lock loop)

说明：  传输矩阵法计算一维光子晶体带隙图的程序，很好用(Transfer matrix method to calculate one-dimensional photonic band gap diagram of the process, a very good use)

this is code for msk and mpsk in communication system

这是从英文网站上下载的程序，可以实现ofdm整个系统的全过程(This is the English site download procedures, ofdm can be achieved throughout the entire process of the system)