viterbi_decoder_acs217

利用MATLAB/simulink实现4FSK调制(Using matlab simulink for simulation modulation 4FSk)

实现串口通信 可以收发数据 可以是数字也可以是ASCII(Serial communication)

大规模MIMO信道容量分析，主要分析了BS和MS天线数不断增大时，对信道容量的影响。(The analysis to Massive MIMO channel capacity as the antennas of BS and MS grow up. )

采用加权网络中节点强度和权重都是幂率分布的模型，双向PCS控制仿真，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块。( Using weighted model nodes in the network strength and weight are power law distribution, Two-way PCS control simulation, PV modules contain, MPPT module, BOOST module, inverter module.)

acquisition tension and frequency of sector

4FSK调制解调的matlab代码。采用相干解调的方式4FSK进行解调，与大多数方案的包络检波不同。基带信号用四种电平来表示，与调制信号相区分。(Demodulation matlab code 4FSK modulation. Coherent demodulation 4FSK demodulates Unlike most programs envelope detector,. The baseband signal is represented with four level distinguish phase with the modulation signal.)

利用MATLAB软件对OFDM系统做出仿真。仿真中采用QPSK调制技术，并加入高斯白噪声，最终得到QPSK星座映射图以及BER曲线图。由仿真结果可以看出，OFDM在高斯信道具有良好的抗噪声性能，误码率较低。(MATLAB software is used to simulate the OFDM system. In the simulation, QPSK modulation technology is used, and Gauss white noise is added, and the map of the QPSK constellation and the BER curve are finally obtained. It can be seen from the simulation results that OFDM has good anti noise performance and low error rate in Gauss channel.)

OBD标准协议，其中包含ISO-15031(OBD standard protocol, which contains ISO-15031)

一篇西安电子科技大学的博士论文《LTE中MIMO_OFDM系统物理层关键技术研究》，作者李文刚，关键词：多入多出 多用户 MIMO 空时编码 功率分配 波束赋形(Xidian University, a doctoral thesis " LTE physical layer system in MIMO_OFDM key technologies" , author Liwen Gang, Keywords: Multiple Input Multiple Output Multi-user MIMO space-time coding beamforming power allocation)

stm32f407 跑马灯实验 原子个例程 学习模块(stm32f407 led run stm32f407 stm32f407 stm32f407)