Supresor-de-Banda

calculates the signal to noise ratio in each subchannel in DMT.(calculates the signal to noise ratio in eac h subchannel in DMT.)

计算这一年已经逝去的天数（包括当天）。在平年中，它的取值范围为1到365，在闰年中，它的取值范围1到366。编写一个MATLAB程序，输入年，月，日，输出为对应的该天是当年的第几天。 闰年是这样规定的 1）.能被400整除的年为闰年 2）能被100整除但不能被400整除的年不为闰年 3）.能被4整除但不能被100整除年为闰年 4）.其余的年份不为闰年 (This year has calculated the number of days elapsed (including that day). In non-leap year, it ranges from 1 to 365 in a leap year, it s the range of 1 to 366. Write a MATLAB program, enter the year, month, day, corresponding to the output of the first year of the day is a few days. This leap is required 1) is divisible by 400 is a leap year 2) can be divisible by 100 but not divisible by 400 years is not a leap year 3) be divisible by 4 but not divisible by 100 is a leap year 4) the rest of the year is not leap year)

此程序用于生成线性调频雷达信号，用matlab实现，并作了比较(This procedure is used to generate the chirp radar signals using matlab realize, and compared)

PSO-Griewank for matlab

先进PID控制及其MATLAB仿真(刘金锟)(Advanced PID control and MATLAB simulation (Liu Kun) )

Simulation doppler effect in matlab

从mit-bih数据库下载心电数据，并进行matlab去噪，滤波等(dowaload ecg data from mit-bih and filtering noise and so on )

适用于地球物理反演的matlab工具箱，可以以此工具箱进行相应的反演分析(Geophysical inversion for matlab toolbox, this kit can make the appropriate back analysis)

说明：  通过时域转换为频域，在频域中截取低频部分，去掉高频部分将结果再转换到时域以实现低通滤波的功能。(Through the time domain is converted to frequency domain, in the frequency domain low-frequency part of the interception, to remove high-frequency part of the results and then switch to the time domain in order to achieve low-pass filter function.)

EMD是处理非线性、非平稳性信号的有效的新方法，本程序是振动信号EMD分解程序，可以把振动信号分解成多个IMF分量和一个残余量。(EMD is nonlinear, effective new method of non-stationary signals, this program is the vibration signal EMD decomposition process, the vibration signal can be decomposed into multiple components and a residual amount of IMF.)