kalman_intro

Determines what changes you should make to the signal during a psychoacoustic adaptive track

单自由度系统对初始条件和简谐激励相应 由单自由度的运动方程和初始条件得到二阶非齐次常微分方程，它的解有对应的齐次方程的通解和非齐次方程的特接构成。(Single degree of freedom system to initial conditions and the corresponding harmonic excitation Special general solution of the equations of motion and initial conditions by a single degree of freedom to get the second order non-homogeneous ordinary differential equations, its solution has a corresponding homogeneous equation and non-homogeneous equation then constituted.)

一个三维的有限元程序代码， 程序里有详细的注释，包括网格的剖分等 参考文献，输入文档。(A three-dimensional finite element program code, program, there are detailed notes, including grid mesh and other references, the input document.)

SOR Method for system of linear equations

清理window7系统垃圾的批处理程序，很好用(Window7 system garbage cleanup batch program, easy to use)

矢量阵的波束域music算法，克服在阵元域波进行music算法需要较高的信噪比及各阵元需要相位意志性的缺点(Vector array beam domain music algorithms, to overcome the array element in the music domain wave algorithm requiring a higher level of signal to noise ratio and the array element will need to phase of the shortcomings of)

说明：  用newton迭代法求方程根的源代码 给出了newton迭代法的实现(with chemotherapy iterative method for equation of the source code is given to the Newton iterative method to achieve)

PCM通信系统脉冲编码调制的信源编码，可以运行。模拟PCM的编码的波形！(PCM communication system pulse code modulation source coding, can run. Simulation of the PCM waveform coding!)

MATLAB 开发滤波输出系统，可以高低波选择波段，并且为双屏显示(MATLAB development filtered output system, you can choose the level of wave band, and for dual display)

在洞穴深处，精灵王子不小心触动了洞穴内暗藏的机关，整个洞穴将很快塌陷，精灵王子必 须尽快逃离洞穴。精灵王子的跑步速度为17m/s，以这样的速度可能是无法逃出洞穴的。庆幸的是精灵王子拥有闪烁法术，可在1s内移动60m，不过每次使用闪烁 法术都会消耗魔法值10点。精灵王子的魔法值恢复的速度为4点/s，只有处在原地休息状态时才能恢复。现在已知精灵王子的魔法初值M，他所在洞穴中的位置与 洞穴出口之间的距离S，距离洞穴塌陷的时间T。你的任务是写一个程序帮助精灵王子计算如何在最短的时间内逃离洞穴。(In the depths of the cave, the elven prince accidentally touched a hidden cave organ, the entire cave will soon collapse, elf prince will Must escape from the cave as quickly as possible. Running speed elven prince of 17m/s, at this rate may be unable to escape the cave. Fortunately elven prince has flashes of magic, can move within 60m 1s, but each use flashing Spell will consume mana 10:00. Elf Prince mana recovery speed of 4:00/s, to resume only in situ resting state. Now the magic elf prince known initial value M, the location of the cave where he and Distance between S cave exit from the cave to collapse time T. Your task is to write a program to help calculate how elven prince fled the cave in the shortest possible time)