ecg-gen-coding

换能器阵元的不同排列组合决定其指向性，波束形成是多波束测量的关键技术。文中 通过数学计算总结了不同换能器阵进行波束形成的工作原理，并介绍了利用二维DFT进行频 域波束形成的一般方法。最后结合现役多波束测深系统，简单解释说明不同系统所采用的波束 形成技术。(Transducer using an array of different permutations and combinations to determine its directivity, beam formation is the key technology for multi-beam measurements. Summarized by mathematical calculations the transducer array beamforming works, and describes the general method of two-dimensional DFT in the frequency domain beam formation. Finally, the active-duty multi-beam sounding system, the simple explanation of the different systems used in beamforming technology.)

Wiener filter code in matlab

线阵超声换能器的二维发射声场仿真，采用FIELD II声场仿真工具包。(the simulation of the transmission intensidy field of a linear transducer by using FIELD II.)

基于调和平均数方法分析瑞利信道多点两跳中继合作分集性能(Based on Harmonic Analysis of the average Rayleigh channel multi-point two-hop relay cooperative diversity performance)

用simulink构建模型，解非线性达芬方程 (Nonlinear Duffen equation with simulink)

计算两种材料构成的一维光子晶体TM模的能带结构(Calculation of two materials consisting of one-dimensional photonic crystals energy band structure of TM-mode)

说明：  基于FDTD方法，对光子晶体进行数值模拟，该程序只针对TE模，能直观的观察传播情况。(Based on FDTD method, numerical simulation of photonic crystal, it is only for the TE mode can be directly observed the spread of.)

Sheffield遗传算法工具箱的matlab代码(Sheffield genetic algorithm toolbox matlab code)

传递函数转换为状态方程的通用程序，编程环境为matlab(Transfer function into the general program for the equation of state)

土木工程领域。matlab斜拉桥有限元调索程序。二维，线性结构。可以输入结构模型参数。包含三种方法：可行域法，弯矩能量最小法，零弯矩法。(Civil engineering fields. transfer cable stayed bridge matlab finite element program. Two-dimensional, linear structure. Structural model parameters can be entered. Contains three methods: feasible domain method, the minimum bending energy, zero moment method.)