STFT

第一次作业_基于分类算法的雷达状态识别 对于本数据集中的雷达状态识别，数据降维前使用朴素贝叶斯、支持向量机、神经网络的分类算法对于识别的准确率无太大影响；数据降维后使用神经网络算法最优，支持向量机算法其次，朴素贝叶斯算法较差。此外，训练样本越多，分类准确率有小幅度提高。(First Operation Radar State Recognition Based on Classification Algorithms For radar state recognition in this data set, the classification algorithm of Naive Bayesian, Support Vector Machine and Neural Network before data dimension reduction has little effect on the accuracy of recognition; Neural Network algorithm is the best after data dimension reduction, Support Vector Machine algorithm is the second, Naive Bayesian algorithm is the worst. In addition, the more training samples, the smaller the classification accuracy.)

DS-CDMA系统的,直扩通信系统里基于不同扩频码不同，系统的误码率比较。其中基于多相正交序列的误码率最低。(DS-CDMA system)

OP25 project, complete receiver and repeater source code for APCO25 digital trunking radio system

这是一个去极值滑动窗口数字滤波器算法，在ADC采样的时候可以用这个算法去除脉冲干扰。(This is digital filter algorithm which removes extreme value，and it works just like a sliding window, we can use this algorithm to remove glitches in ADC sampling。)

说明：  ofdm 信道估计 16qam MMSE估计 对比了块状导频和梳状导频的区别(ofdm channel 16qam MMSE compare with block pilot and comb pilot)

说明：  图形界面实现MQTT通信协议的演示例子程序。(This is an MQTT GUI Demo application,to show how to progrrame with MQTT.)

信道估计方面的参考，初学者会有很大帮助，基于OFDM系统，有最基本的算法仿真和对比(Channel estimation in terms of reference for beginners will be of great help to the OFDM-based systems, simulation and comparison of the basic algorithm)

SPMS deal 模块，SPMS deal 模——(SPMS deal 模块)

说明：  automatic link establishment radio software

addaptive decision directed quantize algorithm