liftingnodeform

针对功放得到非线性失真，采用查表法预失真对功放的非线性进行补偿，仿真表明了补偿方式的有效性。(Obtained for nonlinear distortion amplifier, using the look-up table predistortion to compensate for non-linear power amplifier, simulation shows the effectiveness of compensation.)

create random function -

雷诺方程的有限差分求解 织构化表面的模型数值求解(Finite difference numerical model for solving Reynolds equation solving textured surface)

maple学习资料，以后学习maple就不用担心了(maple learning materials)

MATLAB调用ANSYS实现桁架优化，是一种创新的算法！(MATLAB calls ANSYS to achieve truss optimization, is an innovative algorithm!)

改进了跨声速偶极子网格法（TDLM），且在颤振计算中能自动求颤振点速度，从而较大地提高了计算速度，并有利于方法在较大马赫数及较大减缩频率时的应用。(Dipole source grid method)

说明：  LDL分解。作为矩阵方程数值解法最基础的矩阵分解算法，LDL算法可以高效分解对称矩阵。(LDL decomposition. Numerical Solution of matrix equation as the most basic matrix factorization algorithm, LDL decomposition algorithm can be efficient symmetric matrix.)

录音程序，音频录音fft程序，并加界面显示(radio record code)

说明：  采用有限元及有限差分的方法进行微分方程的求解(This book is introduction to finite difference and finite element methods is aimed at advanced undergraduate and graduate students who need to solve differential equations. T)

差声波检测混凝土的反演计算，通过超声波对未知损伤损伤程度的混凝土进行检测，检测出其损伤程度(Poor acoustic detection of concrete inversion, the unknown damage by ultrasonic concrete testing the degree of injury, to detect the degree of injury)