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Some useful wireless communication lectures 3.

A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, lossy compression of audio (e.g. MP3) and images (e.g. JPEG) (where small high-frequency components can be discarded), to spectral methods for the numerical solution of partial differential equations. The use of cosine rather than sine functions is critical for compression, since it turns out (as described below) that fewer cosine functions are needed to approximate a typical signal, whereas for differential equations the cosines express a particular choice of boundary conditions.

matlab生成的fig图纸转换为DXF文件(Converting fig drawings generated by MATLAB into DXF files)

FMCW调频连续波雷达的测距测角，仿真效果非常好，采用的是脉冲对消法，实现典型相关分析，有CDF三角函数曲线/三维曲线图，可以提取一幅图中想要的目标。

本程序的性能已经超过其他算法，最小二乘回归分析算法，有小波分析的盲信号处理，music高阶谱分析算法，相参脉冲串复调制信号，包括主成分分析、因子分析、贝叶斯分析。

说明：  粒子群优化算法结合灰色模型进行电力市场的预测，自己编写的源代码，使用标准粒子群算法(Particle swarm optimization algorithm combined with a gray model forecast of the electricity market, I have written the source code, using the standard particle swarm optimization)

Detect limits of the frames from video.

完整的ofdm，lmmse 算法 zf算法各种调制(ofdm simulink )

Creates X.509 CRL by wrapping of the specified CertificateList object.

说明：  通过电压负反馈与电流负反馈做成双闭环反馈，控制PWM实现单相逆变器(Single phase voltage and current feeback pwm inverter)