xinzifenxi

OFDM对频偏比较敏感，提出了基于循环前缀的频偏估计方法(OFDM is relatively sensitive to frequency offset, frequency offset estimation method is proposed based on cyclic prefix.)

本章先分析说明伪谱法求解波动方程的算法原理，再给出弹性波场伪谱法数值模拟的改进算法；然后，通过直接引入P波波场变量和S波波场变量，给出可实现弹性波场的P波和S波分解的波动方程，并用伪谱法实现弹性波场的P波和S波分解的数值模拟；最后用伪谱法对井间地震的复杂波场作数值模拟，分析井间地震波场中各种波的传播规律。(In this chapter, the principle of pseudo-spectral method for solving wave equation is analyzed, and then an improved algorithm for numerical simulation of elastic wave field is given. Then, by directly introducing P-wave field variable and S-wave field variable, the wave equation which can realize P-wave and S-wave decomposition of elastic wave field is given, and the P-wave sum of elastic wave field is realized by pseudo-spectral method. Numerical simulation of S-wave decomposition; finally, pseudo-spectral method is used to simulate the complex cross-well seismic wave field and analyze the propagation law of various waves in cross-well seismic wave field.)

用dspbuilder实现32阶FIR滤波器(Achieved with a 32-order FIR filter dspbuilder)

水箱液位模糊控制仿真程序：设有一个水箱，通过调节阀，设计一维的模糊控制器，使用模糊控制规则，进行模糊控制响应。(Water level fuzzy control simulation program )

Daubechies wavelet used to simulate the Daubechies wavelet

MATLAB智能算法30个案例分析,本书采用案例形式，以智能算法为主线，讲解了遗传算法鱼群算法等。(Analysis of 30 Cases of Intelligent Algorithms in MATLAB.This book uses the case form, takes the intelligent algorithm as the main line, explains the genetic algorithm fish swarm algorithm and so on.)

提供一种平滑滤波算法，包含五点三次平滑滤波，中值滤波，可有效去除数据毛刺(To provide a smooth filter algorithm, including five point three times smoothing filtering, median filtering, data can effectively remove burrs)

混沌演示——数据加密的动态过程以及结果展示(Chaos demo- data encryption as well as the results demonstrate the dynamic process)

说明：  一维有限元matlab示例，适合有限元学习入门(One dimensional finite element matlab example, suitable for the introduction of finite element learning)

几种常见的杂波模型，包括瑞利分布，威布尔分布，希望对大家有帮助(Several common clutter modeling，maybe it is helpful for you)