Lowpass filter design

说明：  用c++类的方式在DOS界面下输入字符的程序(With c++ Class interface in DOS, enter the characters in the process)

在gps到大地坐标系之间的坐标转换得高程拟合(Coordinate transformation, height fitting)

基于RSSI的定位，已知发射节点的发射信号强度, 接收节点根据接收信号的强度, 计算出传播损耗, 利用理论的或经验的信号传播模型将传播损耗转化为距离, 然后再计算出节点的位置。(RSSI-based positioning, known to the launch of the launch signal strength node, receiving node based on received signal strength to calculate the spread of wear and tear, or experience the use of the theory of signal propagation loss model will be spread into the distance, and then calculate the location of the node .)

一个简单的注册表访问软件，可访问和修改注册表中的用户信息。-a simple registry access software can access and modify the registry of user information.

六层DSP+ARM_PCB图及封装库，可以进行修改在用！！！ (Six-storey DSP+ ARM_PCB map and package libraries, can be modified to use at! ! !)

用avr语言将DS18B20采集到的温度用1602显示出来。(Using AVR language, the temperature collected by DS18B20 is displayed by 1602.)

求解不定方程,利用初等方法和Pell方程方法计算最小解-Solving diophantine equation, using elementary methods and Pell equation calculated minimal solution

棋盘算法，在给定大小的方格状棋盘上, 将棋子”马”放在指定的起始位置 , 棋子”马” 的走子的规则为必须在棋盘上走”日”字 从棋子”马”的起始位置开始, 搜索出一条可行的路径, 使得棋子”马”能走遍棋盘上的所有落子点, 而且每个落子点只能走一次 -Checkerboard algorithm, given the size of the square-shaped board, will be a pawn of " horses" on the specified start position, the pieces of " horses" take the child must be the rules of the board to the " day" word from a pawn " horses, " starting position of the beginning, search out a feasible path, makes the piece" Horse " can be traveled on board all the Lazi, and they can only go once every Lazi point

说明：  这是一个基于pocketsphinx的例子程序，已经在andtoid studio编译成功，并能识别简单的词汇。这是第9部分(This is an example program based on pocketsphinx, which has been successfully compiled in andtoid studio and can recognize simple words. This is the 9th part.)

说明：  手动实现LM算法代码，开头读取文件请忽略(self-developed LM algorithm)