tiaozhixinhao

说明：  有限差分法，解决偏微分方程的其中的一种解法(Finite difference method to solve partial differential equations in which a solution)

利用角谱传播理论，计算光束传播很远距离后的分布情况，即远场分布(Use angular spectrum propagation theory to calculate the distribution of the beam propagation after a very long distance, that far-field distribution)

阶比分析文件。特别适合对数据进行处理，特别别是信号处理。(Order analysis files. Particularly suitable for data processing, signal processing is not particularly.)

前后向空间平滑ＭＵＳＩＣ算法程序，阵元天线数可变，绝对可用．(Before and after spatial smoothing MUSIC algorithm procedures, variable number of antenna array element is absolutely available.)

this m.file produces channel coefficient with some error, in which the estimation error follows a random variable with zero mean and variance of MSE. lat is the latitude of BS places at different cells which is used to determine the number of BSs in the networks

simth_pid控制器，使用matlab仿真实现，m文件(simth_pid)

用Remez算法设计一个低通滤波器,分别满足性能参数: 滤波器1 滤波器2 滤波器3 采样率Fs: 20kHz 20kHz 20kHz 通带: 0-3 0-4kHz 0-5kHz 带内波纹: 0.1dB 0.1dB 0.1dB 带内衰减: 60dB 60dB 60dB (With the Remez algorithm to design a low pass filter, respectively, to meet the performance parameters: filter 1 filter 2 filter 3 of the sampling rate Fs: 20kHz 20kHz 20kHz pass band: 0-3 0-4kHz 0-5kHz in-band ripple : 0.1dB 0.1dB 0.1dB in-band attenuation: 60dB 60dB 60dB)

级联积分－梳状(Cascaded Integrator–Comb，CIC)滤波器，是种高 效滤波器。它是一种线形相位FIR滤波器，由工作在高抽样率的级联理 想积分器和低抽样率的级联微分器组成,根据抗混叠和抗镜像的指标 确定所需的级联数目。 (Cascaded integrator- comb (Cascaded Integrator-Comb, CIC) filter, is the kind of high efficiency filter. It is a linear phase FIR filter, high sampling rate by the work in the cascade of an ideal integrator and a low sampling rate of the cascade differentiator formed, according to anti-aliasing and anti-mirror of the indicators to determine the number of required cascade.)

具有不完全微分的PID控制方法，可以根据M参数的选择查看演示效果（M=1为不完全微分PID的效果）。(With incomplete derivative PID control method, according to the choice of M parameters to view your presentation (M = 1 is the effect of incomplete differential PID).)

通过fn算法，实现社区网络发现的一个例子。(Through FN algorithm, an example of community network discovery is implemented.)