ofdm_without_noise

当线性代数联立方程组的系数矩阵为三对角阵T时，可将T分解为主对角元素为1的下三角阵L和另一个右三角阵R的积。(Simultaneous linear algebraic equations when the coefficient matrix is tridiagonal matrix T, can break down the main diagonal elements of T 1 of the lower triangular matrix L and the other right-triangular matrix R of the product.)

说明：  DSP本身在内的所有电子器件都是干扰源，而且系统所处的工作环境中还有很多外来干扰源，再加上语音识别技术对信号噪声非常敏感，所以在系统设计中必须考虑系统的抗干扰问题。(DSP itself, including all electronic devices are sources of interference, and the system environment in which there are many external sources of interference, coupled with voice recognition technology is very sensitive to signal noise, so the system design must consider the system of anti- interference problem.)

这些程序是朱毅才老师过程辨识参数书的源程序，是问他本人要的，很珍贵，在此分享，希望对过程辨识的研究人员有很大的帮助(These procedures the teacher Zhu Yi before the process of identification of the source of the argument of the book, and asked his very precious to share this, researchers hope that the process of identification of a great help)

本代码是Real-time O(1) Bilateral Filtering,也就是常数时间复杂度的双边滤波器，它对于很多其他算法有着很大的作用。对应论文就是Real-time O(1) Bilateral Filtering。亲自编译运行通过(It is the C++ code of Real-time O(1) Bilateral Filtering, that is, constant time complexy bilateral filtering, it is vitally useful for other algorithams. The responding paper is Real-time O(1) Bilateral Filtering. It is execuable.)

已知系统的差分方程，用matlab实现输出信号的自相关计算并画出图形。(Differential equations known system, the output signal using matlab autocorrelation calculated and drawn graphics.)

程序mtlab中的代码-地震波反应谱与时程波相互转换(Interconversion between seismic response spectrum and time-history wave)

说明：  雷达MTD源程序，非常棒的MATLAB源码，谁用谁知道，呵呵(MTD radar source, great for MATLAB source, who is with who knows, huh, huh)

用matlab做的有限元编程的源代码，子例程丰富(Using matlab to do finite element programming source code, extensive subroutine)

用七元线形天线阵（ULA） 已知：信号中心波长为2,天线阵元的间距为1米,快拍数为2000，空中有四个 源信号,假设它们的频率：0.015, 0.05, 0.02, 0.035 四个源信号的方向分别为：pi/4 pi/3 pi/6 3pi/4 求： 1）在不加入噪声的情况下,画出传统波束形成法、Bartlett波束 形成法、Capon波束形成法的空间谱图； 2）在加入高斯白噪声的情况下,假设信噪比为10dB，画出传统波束 形成法、Bartlett波束形成法、Capon波束形成法的空间谱图。(7-element linear antenna array (ULA) Known: the signal center wavelength is 2, the antenna element spacing of 1 m, the number of snapshots for 2000, the air there are four Source signal, assuming that their frequency: 0.015, 0.05, 0.02, 0.035 The direction of the four source signals: pi/4 pi/3 pi/6 3pi/4 Requirements: 1) not to join the noise, to draw the traditional beam-forming method, Bartlett, beam Formation method, Capon beamforming method of the space spectrum 2) by adding Gaussian white noise, assuming that the SNR is 10dB, to draw the traditional beam Formation method, Bartlett, beamforming, Capon beamforming method of the space spectrum.)

汽车制动防抱死系统的MATLAB/SIMULINK仿真模型，通过门限值作用(MATLAB/SIMULINK simulation model of automobile anti-lock braking system, through the threshold effect)