swnet

This contains the full set of source files for the MatClass library together with a make file to create the libraries using Microsoft C/C++ v7 or later. This make file is a stand-alone file to be used with NMAKE or as a NON-PWB makefile in PWB. Note the make file generates uses the Large Memory model. It generates a library file called LIBMAT.LIB.

亚波长抗反射结构图，可以显示投射率的变化大小(subwavelength antireflect)

混沌时间序列的分析和应用，对于混沌研究者很有用的一本书(Analysis and application of chaotic time series, chaos researcher useful for a book)

正交匹配追踪(OMP)在稀疏分解与压缩感知重构，稀疏分解先于压缩感知提出，信号稀疏表示的目的就是在给定的超完备字典中用尽可能少的原子来表示信号，可以获得信号更为简洁的表示方式，从而使我们更容易地获取信号中所蕴含的信息，更方便进一步对信号进行加工处理，如压缩、编码等。(Orthogonal Matching Pursuit (OMP) is used in sparse decomposition and compressive sensing reconstruction. Sparse decomposition is proposed prior to compressed sensing. The purpose of signal sparse representation is to represent the signal with as few atoms as possible in a given overcomplete dictionary. The more concise representation of the signal allows us to more easily obtain the information contained in the signal, making it easier to further process the signal, such as compression and coding.)

MATLAB代码,利用卡尔曼滤波实现加入彩色噪声的语音信号增强.效果不错.(MATLAB code, the use of Kalman filter color noise adding realize voice signal enhancement. Good results.)

matlab code for Tools for NIfTI and ANALYZE image

Sensing of spectrum using FFT

说明：  图象边缘检测及定位,开发环境是MATLAB，可直接编译使用。(Image edge detection and localization, and development environment is MATLAB, can be directly compiled with.)

Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I signal, and the other is called the Q signal. Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase shift, each can be modulated independently, transmitted over the same frequency band, and separated by demodulation at the receiver. For a given available bandwidth, QAM enables data transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation in the bit error ratio (BER).

包含了雷达系统中线性调频信号的时频仿真,匹配滤波和去调频两种压缩算法以及回波信号的模拟 (When the system contains a radar frequency chirp signal simulation, and the simulation algorithm and matched filtering and echo signal to FM two compression)