Photonic-crystal-transmittance

有关低密度奇偶校验码的一些matlab仿真程序(The number of low-density parity check codes matlab simulation program)

MATLAB实现高通及低通滤波器，是实验上编写的代码，多指教(MATLAB high-pass and low pass filter is experimentally write the code, multi-Zhi Jiao)

matlab编程完成一GPS网的平差计算。起算数据见文件“起算数据.TXT”；GPS网略图见“网图.jpg”；基线向量观测值和方差见“基线.bas”。根据已知起算数据和观测值建立数学模型并进行最小二乘平差计算和精度评定。代码和计算结果在实习报告中也已详细列出。(matlab program to complete a GPS network adjustment calculation. Initial data the document entitled " Initial Data. TXT" GPS network sketch map, see " Map. Jpg" baseline vector and the variance of observations, see the " baseline. Bas" . According to initial data and observations of known mathematical model and the least squares calculation and accuracy evaluation. Code and report the results in practice have also been detailed.)

compare the fourier coefficient

说明：  用MATLAB编程实现OFDM调制，使用了FFT和IFFT方法(Programming with MATLAB realize OFDM modulation, the use of FFT and IFFT methods)

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.)

自适应画线，可用Matlab编程,也可用Mathematica软件编程(Adaptive draw lines available Matlab programming)

full DSB-SC Modulation- Demodulation Process. The input arguments are given below: • Input Signal Frequency: 10Hz • Carrier Frequency: 15Hz • Sampling Frequency: 100Hz

根据邻接矩阵，计算复杂网络中模块的聚类系数。(According to the adjacency matrix, the computational complexity of the network module clustering coefficients.)

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