sub-band-coding

说明：  在过程控制中，按偏差的比例（P）、积分（I）和微分（D）进行控制的PID控制器（亦称PID调节器）是应用最为广泛的一种自动控制器。它具有原理简单，易于实现，适用面广，控制参数相互独立，参数的选定比较简单等优点；而且在理论上可以证明，对于过程控制的典型对象──“一阶滞后+纯滞后”与“二阶滞后+纯滞后”的控制对象，PID控制器是一种最优控制。PID调节规律是连续系统动态品质校正的一种有效方法，它的参数整定方式简便，结构改变灵活（PI、PD、…）(In process control, the PID controller (also called PID regulator) controlled by deviation ratio (P), integral (I) and differential (D) is one of the most widely used automatic controllers. It has the advantages of simple principle, easy realization, wide application, independent control parameters, simple parameter selection, etc. It can also be proved theoretically that PID controller is an optimal control for the typical object of process control - "first-order lag + pure lag" and "second-order lag + pure lag". System. The regulation rule of PID is an effective method for dynamic quality correction of continuous system. Its parameter setting method is simple and its structure is flexible (PI, PD,...).)

USB与51单片机的连接使用，采用PDIUSB12接口芯片(51 single-chip USB connectivity and use, the use of PDIUSB12 interface chip)

说明：  基于stm32通过esp8266-wifi进行通信的WiFi初始化实验(Communication through esp8266)

关于使用saber软件的逆变器仿真，可以更精确的达到仿真结果。(saber inverter)

基于STM32F407的HCSR—04超声波模块测距功能基本实现(The basic realization of HCSR-04 ultrasonic module ranging function based on STM32F407)

无线温度控制及监测系统，基于stm32开发(Wireless Temperature Control and Monitoring System)

ST7565 串行液晶驱动 + 多层液晶菜单 + Proteus仿真 ST7565 串行液晶驱动，用 晓奇工作室 Lcmzimo.exe提取字库，实现多层菜单，配有Proteus仿真。老是提示上传错误等会再传程序吧 (ST7565 Serial LCD driver++ Proteus simulation of multi-layer LCD menu serial ST7565 LCD driver, extract the font to use Xiaoqi studio Lcmzimo.exe to achieve multi-layer menu with a Proteus simulation. Always will be prompted to upload the error re-transmission of programs such as bar)

基于单片机计算器,可计算加减乘除，但是不能计算小数(Based on single chip calculator)

基于STM32的开关电源设计论文+开关电源原理图，其本质就是DC-DC设计。(STM32-based design of switching power supply switching power supply schematic thesis+, its essence is DC-DC design.)

SIM卡电话本读写方案，了解SIM文件系统和外部接口的实战方案，采用EMC915芯片实现。(SIM card phone book reader program, to understand SIM file system and the external interface of practical solutions, using EMC915 chip.)