junhengqi

An Energy-Efficient MAC Protocol for Mobile Ad hoc Networks

ModBus水质分析仪CRC计算的接口STM32F2实现，此应用适用于市面大部分Modbus水质协议的CRC校验(ModBus water quality analyzer CRC calculation of the interface STM32F2 implementation, this application is applicable to most of the market Modbus water quality agreement CRC calibration)

用winsock实现两机通讯的一个小软件 特别简单 不再具体介绍(Winsock implementation to use two planes, a small communications software in particular is no longer easy introduction of specific)

网格编码的16QAM仿真，验证网格编码的增益和误码(grid coding 16QAM simulation, verification grid coding gain and the error)

MATLAB环境下对turbo编码进行仿真模拟，并对误码率做出分析(The MATLAB environment MPFK modulation simulation, and error rate to make the analysis of)

信息经格雷码映射，进行QPSK调制并通过AWGN信道发射，在接收端进行QPSK解调，并统计误符号率和误码率。(Information on the Gray code mapping, QPSK modulation and emission through the AWGN channel, QPSK demodulator at the receiving end, and the statistical symbol error rate and bit error rate.)

注水算法，多跳系统，ofdm信道、功率分配使容量最大化(Water-filling algorithm, ofdm channel power distribution)

说明：  this folder contains VIs related to USRP.

说明：  以均匀圆阵为例，通过功率倒置算法，使特定方向上的天线增益最大，已达到波束成形，空域滤波的目的 参考文献《GNSS空域抗干扰算法研究及FPGA实现》(Research on Spatial Anti-jamming Algorithms of GNSS and FPGA Implementation)

非规则LDPC码在AWGN信道下的性能仿真，码长1024，码率0.5，调制方式QPSK(simulation of LDPC codes in AWGN channel)