中国土壤特征数据集

说明：  在ArcGIS二次开发的基础上，实现了GIS的基本功能(On the basis of secondary development of ArcGIS, the basic functions of GIS are realized.)

基于可编程跨导运算放大器POTA低通有源滤波器设计。该文给出了基于可编程跨导运算放大器(POTA)的有源滤波器设计方法，能在一定范围内实现跨导值程控调节, 提高调节精度和准确度。并且利用Jacobi 法求解相似对角形矩阵，避免解高次方程的难题。所设计的有源滤波电路不易受分布电容的影响，稳定性好、灵敏度低。本文给出了设计实例，显示了该方法的优点。-Based on programmable transconductance operational amplifier POTA low-pass active filter design. In this paper, based on the programmable transconductance amplifier (POTA) of the active filter design method that can realize in a certain range transconductance value of program-controlled adjustment, improve precision and accuracy regulation. Jacobi method and use a similar matrix of angular, high-equation solution to avoid problems. Designed active filter circuit less susceptible to the effects of distributed capacitance, good stability, low sensitivity. In this paper, design examples, showing the advantages of the method.

One allows you to convert pictures into albums on your web pages, and switch between albums and albums when cover pictures are added.

使用百度地图api，进行批量实现坐标的拾取(Use Baidu map API to batch realize coordinate pickup.)

UWB matlab 仿真源代码，UWB channel model bpsk-UWB matlab source code simulation, UWB channel model bpsk

这个代码实现了ZYNQ的PL端的扩展串口功能,且可用于LINUX系统中，485/232都可使用，后续会继续更新(This code implements the extended serial port function of the PL end of ZYNQ, and can be used in LINUX system, 485/232 can be used, and will continue to be updated later.)

说明：  采集被测模块工作时，一段时间内的current ，然后进行平均值计算(Collect the current of the tested module in a period of time, and then calculate the average value)

说明：  电力系统考虑网损的经济调度程序，采用的是经典算例，算例实用性较好。(Net loss of power system considering the economic dispatch procedures used are the classic example, a good practical example.)

一款用c语言编写的坦克游戏，适合刚刚接触游戏的编程新手-c language used tanks games for the game just contact the programming novice

说明：  这是一个Python基础的练习Demo,提供以后进行学习查看和记忆(this is a Python basic traning Demo,Provide for future learning, viewing and memory)