costas

optimal coverage problem of wireless sensor network

说明：  数字信号的调制识别，提取了信号的时域特征与频域特征。包含神经网络训练。(Modulation recognition of digital signal.The time-domain and frequency-domain features of the signal are extracted. Including neural network training.)

这是一篇基于循环延迟分集的分组预编码和空时频编码技术方面的典型文章(This is a cyclic delay diversity based on the group pre-coding and space-time-frequency coding technology, a typical article)

国网376.1报文解析工具，所有的报文都能正确解析，支持 Q/GDW 376.1-2009协议和 Q/GDW 1376.1-2013协议(Support Q/GDW 376.1-2009 Communication protocol and Q/GDW 1376.1-2013 Communication protocol)

关于polar codes的源码，简单的仿真。(An Brief Introduction to Polar Codes)

研究考虑多普勒频移fd情况的LFM调频目标回波特性(Study considers the case of Doppler shift fd target echo characteristics LFM FM)

Bluetooth.rar contains all the required datas and document to interface bluetooth module to Microcontroller, including its architecture, modes of operation, AT commands, etc...which will be very useful in understanding BT concepts

介绍bch的基础知识，包括纠删码的编码和解码(Introduce the basic knowledge of bch, including the encoding and decoding of erasure codes)

实现16QAM完整的调制解调系统，包括基带信号串并转换，星座图映射，升抽样成形滤波，升采样半带滤波，数字上变频，功放的多项式非线性效应，加性高斯白噪声信道，接收端下变频，降采样，匹配滤波，绘制接收端星座图。(16QAM modulation and demodulation realize the complete system, including the baseband signal string and conversion, constellation mapping, sampling shaping filter liter, half liter sampling with filtering, digital up-conversion, amplifier polynomial nonlinear effects, additive white gaussian noise channel, the receiver end down-conversion, down-sampling, matched filtering, draw the receiver constellation.)

用于xmodbus方式通讯。使用labview编制CRC16-XMODEM.vi(Kaubamaja for Xmodbus communication. Using LabVIEW establishment.CRC16-XMODEM.vi)