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fft and view in matlab

这个程序可以用来计算复杂网络中的介数，稍微修改就可以实现边介数和点介数的计算。(This program can be used to calculate the number of referrals of complex networks, a slight modification can calculate the number of edges and points referral referral number.)

code for finding logo in figure

各种matlab滤波函数，对于matlab的初学者来说十分有益。(Various matlab filter function, for matlab' s very useful for beginners.)

在压制式噪声调频干扰环境下，应用时频分析的方法（STFT）对线性调频信号进行时变滤波，对干扰进行了初步的抑制。(Under suppress noise FM interference environment, the application method (STFT) variable frequency analysis filtering chirp signal when a preliminary interference suppression.)

说明：   目标跟踪，用matlab可以直接实现的算法( target tracking matlab)

基带信号周期采样的分析与仿真设计低通信号，对该信号进行周期采样，最后从采样数据中恢复原始信号；改变采样频率，给出相应的仿真结果；考察前端抗混叠滤波器的作用和必要性；分析后端理想恢复滤波器是否唯一。( Periodic sampling of the baseband signal analysis and simulation to design low pass signal, the signal is periodic sampling, finally recover the original signal from the sampled data changing the sampling frequency, gives the corresponding simulation results examine the front of the role of anti-aliasing filter and necessity analysis backend ideal restoration filter is unique.)

一个用于测试准周期信号的周期的小程序，横须中用ECG信号测试，测试ECG信号的周期(A small program used to test the quasi-periodic signal cycle, cross to be using the ECG signal test, test ECG signal cycle)

2011年秋季 北京航空航天大学惯性导航原理第二次大作业(2011 inertial navigation the second homework of beihang university )

扫地机器人的一种路径规划算法，内螺旋法，首先构建了房间地图，然后遍历了房间。(A path planning algorithm sweeping robot, spiral method, first built room map, then traverse the room.)