computing

Five level three phase inverter

filter design sigma delta filter(filter design sigma delta filter)

This algorithm solves the otimization problem min_x | y - A x |_2^2 + lambda Phi(x) and has applications in compressed sensing, image restoration and reconstruction, sparse regression, and several other problems.

研究了重频参差相参脉冲串的频率估计算法。通过脉内相关积累，提高了新序列的信噪比。对新序列的相位差按参差重数抽样平均，减小了等效的相位噪声方差，利用重频参差比解相位模糊，扩大了频偏允许范围，降低了算法的信噪比门限。分析了本算法实现相参频率估计的条件，推导了相应信噪比门限的解析表达式，指出了信噪比门限与信号样本总数、参差重数、参差比之阎的关系。仿真结果表明：上述结论是正确的，在满足信噪比门限条件下，频率估计的精度接近相参脉冲串频率估计的克拉美一罗限(CRLB)。(Frequency Estimation for Staggered Coherent Pulse Train)

高斯随机信号产生的matlab源代码，可以作为参考(gauss matlab source code)

LCMV波束形成MATLAB程序，用于LCMV波束形成图形仿真(Graphic simulation for LCMV beamforming)

利用FFT方法和维纳-辛钦定理自相关函数获得功率谱的对比。(Using FFT method and Wiener- Khintchine theorem to obtain the autocorrelation function of the power spectrum contrast.)

说明：  包含seddle点检验功能的卷积FASTICA(Contains seddle point test function convolution FASTICA)

Designs a frequency-domain and time-domain FIR equalizer for a single-input single-output (SISO) channel. Frequency-domain equalization uses a Chebychev criteria and is specified in terms of frequency response functions. It is a convex problem (which can be formulated as an SOCP): ( where H is the frequency response function and our variable is the filter impulse response h. Function G is the unequalized frequency response and G_des is the desired freq response. Time-domain equalization immediately designs the impulse response function by specifying the problem in time (it s an LP): minimize max_{t neq D} |g_tilde(t)| s.t. g_tilde(D) = 1 )

《matlab通信工程仿真》源码，张德丰主编，机械工业出版社。里面的readme文件介绍了本书的目录和版本。(" Matlab Communication Engineering Simulation" source, Zhang Defeng editor, Machinery Industry Press. Inside the readme file describes the directory and the version of the book.)