OpcClient

HC6800EM3 v20原理图（电路图）(HC6800EM3 V20 schematic diagram (circuit diagram))

北斗通信设备通用的协议，串口通信与北斗卫星的通信协议，(The general protocol of Beidou communication equipment, serial communication protocol with Beidou satellite)

VS2008下数据采集系统源码，主要实现实时采集下位机的数据，并实现曲线绘制和历史数据查询的功能(VS2008 under data acquisition system source code, mainly to achieve real-time acquisition the lower machine data, and curve drawing and historical data query functions)

BPSK调制，采用（15,11）汉明码对信号编码；然后对信号加噪，解调，译码。(BPSK modulation (15,11) Hamming code signal encoding then added noise to the signal, demodulation, decoding.)

说明：  程控滤波器 包括max262驱动,显示键盘,和程控放大,以及流程控制部分(Max262 driver program, including filters, showing the keyboard, and program-controlled zoom, as well as part of process control)

三相光伏逆变并网的仿真，STM32制作的MP3的全部资料，IMC-PID是利用内模控制原理来对PID参数进行计算。( Three-phase photovoltaic inverter and network simulation, STM32 all the information produced by the MP3, The IMC- PID is using the internal model control principle for PID parameters is calculated.)

实现物理层网络编码的仿真，此为无信道编码环境下实现的(network coding)

仿真均匀直线阵列、均匀平面阵列、均匀圆形阵列的方向图(Simulation of uniform linear array, uniform planar array and uniform circular array pattern)

说明：  设计一个巴特沃兹数字低通滤波器，其技术指标为：3dB带宽为0.2π，阻带截止频率为0.3π，通带纹波为1dB，阻带衰减大于30dB，采样间隔T=10ms。 1）采用冲激响应不变法； 2）采用双线性变换法设计； 3）采用FIR的窗函数（Hanning窗、Hamming窗或Blackman窗）设计。(A Butterworth digital low-pass filter is designed. Its technical specifications are: 3 dB bandwidth is 0.2 pi, stopband cut-off frequency is 0.3 pi, passband ripple is 1 dB, stopband attenuation is more than 30 dB, sampling interval T=10 Ms. 1) Impulse response invariance method is adopted. 2) Design by bilinear transformation method; 3) FIR window function (Hanning window, Hamming window or Blackman window) is used to design.)

Phase Modulation and Demodulation(Phase Modulation and demodulation)