DS_CDMA

通信信号中编解码技术的研究，通过生成OFDM信号，经过快速傅里叶变换与反变换，最后用16QAM解调，计算信噪比。(Communication signal encoding and decoding techniques, but by generating OFDM signals, through the fast Fourier transform and inverse transform, and finally with 16QAM demodulation, signal to noise ratio calculation.)

Example: Modeling an Inverted Pendulum in Simulink

压缩感知算法中观测矩阵为哈达玛矩阵重构算法为OMP时的测量相对误差与观测矩阵维数的关系(Compressed sensing algorithm for the Hadamard matrix of observation matrix reconstruction algorithms for the OMP and the relative error when measuring the dimension of the relationship between the observed matrix)

Shows single- and two-stage-decomposition of a sample image, as well as reconstructed branches. The reconstruction error is shown. Also demonstrates that better compression can often be obtained if different thresholds are allowed for different subbands.

Matlab中S函数的介绍，很详细，可以用于Simulation仿真。(S functions in Matlab is introduced, very detailed, can be used in the Simulation )

这是基于滑膜观测器的永磁同步电机的无速度传感器的的模型，改模型能够切换到滑膜控制的速度估计。(This is a permanent magnet synchronous motor based on synovial observer without speed sensor model, change model can switch to the synovial control speed estimation)

捷联惯导姿态位置速度高度全解算，其中程序的使用还应该按需选择和衔接(SINS Attitude Full height position and speed solver, In which the program should also demand choices and Cohesion .)

图像的几何操作：图像旋转，图像剪切，包括旋转角度。(Geometric image operations: image rotation, image shearing, including rotation.)

id article going to explain bout doa estimatiion in 4g techniques

BLAC means brushless ac motor. It is about vector control of PMSM permanent magnet synchronous machine