DQER

说明：  利用matlab处理数据.采用FFT和小波分析的方法分析信号的功率谱.........(perform on the picture using matlab to analysis the power spectrum...)

本程序完成地震信号的提取检测。以往都是利用地震信号的能量比，此处创新选择地震信号的过零点作为边缘提取的判断。新方法效果不错。(The process is complete extraction of seismic signal detection. Past, the energy ratio of seismic signal, where innovation and choice as the seismic signal zero-crossing edge detection judgments. The new approach is very effective.)

现代信号处理课程中的周期图算法仿真，主要利用平滑周期图来处理的(Courses in modern signal processing algorithm simulation periodogram, smoothed periodogram using mainly to deal with)

poisson过程的分布及其自相关函数，方差函数，平均值(poisson process distribution and autocorrelation function, variance function, average)

alamouti_new: Orthogonal space-time block coding for 2xM antenna configurations.

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

说明：  具体什么内容，自己看了就知道了，学到的用了才是最好的，否则不看也罢(What is the specific content of their reading will know, learn to use the best, otherwise do not look worth mentioning)

calculates the signal to noise ratio in each subchannel

无刷直流电机数学模型及其控制系统，效果良好，控制精度高(Brushless DC motor mathematical model and its control system to good effect, high precision control)

ACDC简单仿真，单相桥式结构，适合新手了解用。(ACDC simple simulation, single-phase bridge structures, suitable for a novice to understand.)