Scientific_Computing

本程序为一种基于凸优化的OFDM信道估计算法，平滑SLO算法是求解稀疏线性方程组的一种迭代解法，本程序将其应用于OFDM信道估计，取得了较好的信号估计精度以及速度(This procedure is a convex optimization of OFDM-based channel estimation algorithm, smoothing algorithm SLO is sparse system of linear equations to solve an iterative method, the procedure will be applied to OFDM channel estimation, the signal to obtain a better estimation accuracy and speed)

3G系统及仿真平台，包括3D MIMO，资源调度，协作多点传输，接收调制解调等(3G systems and simulation platform, including 3D MIMO, resource scheduling, coordinated multipoint transmission, the receiving modem, etc.)

运用三层BP网络结构（输入层、隐含层、输出层）实现算法，进行十进制与二进制的转换。(The use of three-tier structure of BP network (input layer, hidden layer, output layer) implementation algorithm, and binary to decimal conversion.)

After we calculate the R peaks of the ecg signal, we identify different criteria : a) Heart rate. b) Regularity of the R-R peaks (Look at the R-R distances). 1. Regular (are they equidistant apart). 2. Irregular. c) Rhythm 1. Tachycardia ==> Fast. 2. Bradychardia ==> Slow. 3. Normal.

实现多用户MU，通过两次预编码来消除用户间干扰和流间干扰，同时这种处理极大简化了接收机复杂度。(MU-MIMO 。 the first precoding ：ZF-BD the second precoding ：ZF or MMSE)

matlab off-ais grating

this is a simulink dc motor separate excitation with PID controller

It is matlab coding.The coding is useful

说明：  awgn 信道下 ldpc与FQPSK的串行级联系统，(AWGN channel，serially concatenated FQPSK modulation system with ldpc)

DYNAMIC SIMULATION OF ELECTRIC MACHINERY by Chee-Mun Ong, published by Prentice-Hall