OFDM-SINR-blind-estimation

说明：  OFDM链路OPTISYSTEM 仿真模型(Simulation of OFDM link optisystem)

结合QPSK调制的直接序列扩频系统的仿真(Combined with QPSK modulation direct-sequence spread-spectrum system simulation)

默认产生（0，1）的高斯随机数，参数可调(Gauss random number (0,1) is generated by default with adjustable parameters.)

说明：  小数频锁相环建模，适用于学习了解小数频率综合器设计人群。(Modeling of fractional frequency PLL)

基于多径传输和多普勒频移的 瑞利（Rayleigh）信道的仿真 主要考虑不同条件下的仿真(Based on Multi-Drive transmission and Doppler frequency shift of the Rayleigh (Rayleigh) channel simulation main consideration different The simulation conditions)

半导体通讯协议，包含SECS-I SECS-II HSMS GEM讲解(include SECS-I SECS-II HSMS GEM)

信号进入信道，经过高斯噪声的干扰，经过QPSK调制以后的时延 (The signal enters the channel, after the interference of the Gaussian noise after a delay after the QPSK modulation)

说明：  多径参数干扰下的ofdm系统的matlab仿真代码，可供学习(Matlab simulation code of OFDM system under multipath parameter interference can be learned)

OPC通讯源代码C++编写，第一次发文，从别处下载而来(OPC communication source code is written in C++, for the first time issued a document downloaded elsewhere)

HLP A+ Modbus 标准通讯协议格式，上位机发送数据格式，正确时变频器返回数据格式(This bit will be set to logic 1 when the receive buffer has been read and contains no new information. If there is new information available in the receive buffer that has not been read, this bit will return to logic 0. RXBMT = 1 when in Master Mode.)