scat3d

荷兰瓦格宁根大学研究的温室小气候模型，包含17个状态变化和8个控制变量，具有较高的模拟精度(a complete greenhouse microclimate model developed by wagenigen, have 17 state variables and 8 control inputs,and posses precise simulation error)

The code is useful for solving partial differential equations such as the advection equation, the 2 dimensional heat equation. Also contains code to simulate two falling balls align in one axis with rebound. Also has some code for implementing the Successive over-relaxation method.

Amplitude modulation and demodulation

利用自然梯度算法，构成不同频率的调制信号，包含位置式PID算法、积分分离式PID，一些自适应信号处理的算法，包括最小二乘法、SVM、神经网络、1_k近邻法,使用起来非常方便，合成孔径雷达（SAR)目标成像仿真。( Use of natural gradient algorithm, Constituting the modulated signals of different frequencies, It contains positional PID algorithm, integral separate PID, Some adaptive signal processing algorithms, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Very convenient to use, Synthetic Aperture Radar (SAR) imaging simulation target.)

QPSK是通信信道中一种很好的调制方式，对于其性能参数进行了仿真，信道以及噪声选择可以根据代码自由改动。对学习无线编码很有用处。(QPSK is a good communication channel modulation, the performance parameters for the simulation, channel and noise free choice can be altered according to the code. Learning wireless encoding useful.)

从mit-bih数据库下载心电数据，并进行matlab去噪，滤波等(dowaload ecg data from mit-bih and filtering noise and so on )

此程序的功能为对采集到的信号进行小波阈值去噪，阈值为改进阈值。(the program is used for wavelet denoise)

pid自适应控制器学习和程序大家学习，很好用的(广告)

这是一个有关Turbo码编译码的程序，译码采用的是MAP译码方法，挺好！(This is a Turbo codes in the process of decoding the MAP decoding methods, very good!)

this code is for the pegasis algorithm in the wireless sensor networks.