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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.

射频卡资料，philips公司的，希望对大家有用-RF card, philips company, in the hope that useful to everybody

C++Builde做的俄罗斯方块源程序-C Builde do Tetris source

E+H质量流量计中文使用操作指南，科氏力质量流量测量系统，用于压缩天然气(CNG）加料(E+H CNGmass Operating instructions ,Coriolis Mas Folw Measuring System For Fueling with Compressed Natral Gas(CNG))

说明：  因子图优化最好的后端优化库之一，结构清晰，代码简洁易懂，很不错。(Factor map optimization is one of the best back-end optimization libraries, with clear structure, simple and easy to understand code, which is very good.)

K型热电偶MAX6675的驱动程序，此驱动部分已经在产品中使用(K type thermocouple MAX6675 driver, the driver section has been used in the product)

pc.c是移植于μCOS-II的PC服务代码（pc.c） 主要改动： 1、#include "includes.h"改为"config.h" 2、在屏幕上显示改为向UART0发送数据，在电脑上显示，影响的函数： PC_DispChar()、PC_DispClrCol()、PC_DispClrRow()、PC_DispClrScr()和PC_DispStr() 3、获取键值改为从UART0获取，影响的函数：PC_GetKey() 4、因为没有dos环境所作的修改，影响的函数： PC_DOSReturn()、PC_DOSSaveReturn()、PC_SetTickRate()（删除）、PC_VectGet()（删除）和 PC_VectSet（删除）。 5、因为定时器不同所作的修改，影响的函数： PC_ElapsedStart()和PC_ElapsedStop()。 6、因为实时时钟不同所作的修改，影响的函数：PC_GetDateTime()。-pc.c is transplanted COS-II PC service code (pc.c) major changes : 1,# include "includes.h" with "config.h" two, displayed on the screen changed to UART0 send data on the computer, the function : PC_DispChar (), PC_DispClrCol (), PC_DispClrRow (), PC_DispClrScr (), and PC_DispStr () 3, access keys to read from UART0 acquisition, the function : PC_GetKey () 4 because no dos environment changes, it will affect the function : PC_DOSReturn (), PC_DOSSaveReturn (), PC_SetTickRate () (deleted), PC_VectGet () (deleted) and PC_VectSet (deleted). 5, becaus

结合DEM数据对SAR影像数据（ENVISAT影像）进行几何校正，最终结果表现为将SAR影像校正到地理坐标上，并进行了灰度重采样(The geometric correction of SAR image data (ENVISAT image) is carried out with DEM data. The final result is that the SAR image is corrected to the geographic coordinates, and the grayscale resampling is carried out.)

使用lstm神经网络预测时间序列，同时对参数选择进行优化(Time series prediction using LSTM neural network, the selection of the parameters are optimized)

用C语言写的比赛管理系统，内附课程设计的完整材料。(Using C language to write the game management system, curriculum design included the complete material.)