xna game coder,very good

基于单片机学习的直流电机调速，用C语言编程的(Microcontroller based DC motor speed of learning, using the C language programming)

卫星轨道书中附带的C++程序，很好地一本书，对于卫星设计很重要(The book comes with a satellite orbit C++ program, a good book, it is important for the satellite design)

NURBS曲面重建，可以直接使用，绘制NURBS曲面，很简单的，自己稍微调试下参数就行

说明：  重磁异常正演方法，是在给定地质体的形状大小、空间位置及物性参数的条件下，求它外部空间任意点上的物理场值。(The forward method of gravity and magnetic anomaly is to calculate the physical field value at any point in the outer space of a given geological body under the condition of its shape, size, space position and physical parameters.)

stm32f103zet6 中断按键检测与lcd12864显示源码,该源码主要为嵌入式设计中使用，主要功能为通过按键触发外部中断，然后改变lcd12864中“开”、“关”字样，包含了16824硬件连接，源码。中断源码

本文介绍了一种 )’’ 多系统静态基线数据处理方法!该方法使用统一的方式来处理 &’ 5.)6’’ 北斗 及三者融合的观测数据#这种处理方法已经实现在广州南方测绘仪器有限公司的静态后处理软件中#本文使用实际数据验 证了这种处理方法!得到了较好的结果(This article describes a ) ' multi-system static baseline data processing method! This method uses a unified way to deal & ' ' 5.) 6' ' ' Compass and three observational data fusion# This treatment method It has been achieved in the static Guangzhou South mapping Instrument Co.# post-processing software used herein, the actual data validation of this approach! Get better results)

系统中采用了电压反馈闭环，单片机通过内部软件产生一路SPWM控制信号，然后经过逻辑门变换电路变换成逆变全桥所需的四路驱动信号，再经专用驱动芯片TLP250隔离放大后，分别加到逆变全桥四个IGBT的栅极，进行驱动控制。(The voltage feedback closed loop is used in the system, and the single chip microcomputer generates all the SPWM control signal through the internal software, then transforms the four-way drive signal required by the logic gate transformation circuit into the inverter full bridge, and then adds to the gate of four IGBT of the inverter full bridge after the special drive chip TLP250 isolation and amplification, and carries on the drive control.)

这是自己在STC单片机中写的关于FOR循环实现延时的程序，并且经过逻辑分析仪分析，得到了验证。可以被用来拿到相关的地方做延时子程序使用。

说明：  用udf编写的SST k-w湍流模型，有标量方程的源项 扩散项 对流项(ANSYS Fluent User Defined Functions (UDF) for)

说明：  最小二乘一次完成算法，C语言编写，源码，调试通过。(A complete least-squares algorithm, C language, source code, debugging through.)