OFDM

MPSK信号调制方式识别仿真，可产生B，4，8PSK信号加噪声进行仿真，学习信号分析的可以参考(MPSK modulation signal recognition simulation, can generate B, 4,8 PSK signal plus noise simulation, the study of signal analysis can refer to)

本源码实现遗传算法，用于RA准则下的多用户OFDM自适应资源分配(The source code implements genetic algorithm for multi-user OFDM adaptive resource allocation under RA criterion)

说明：  程控滤波器 包括max262驱动,显示键盘,和程控放大,以及流程控制部分(Max262 driver program, including filters, showing the keyboard, and program-controlled zoom, as well as part of process control)

calculating CRC from digital and analog input

分析瑞利衰落信道下qpsk的snr与ber的关系(The relationship between QPSK SNR and ber in Rayleigh fading channel is analyzed)

说明：  该资源为应用GNUradio工具，对USRP的开发，主要实现了频谱感知，以及根据频谱感知的结果进行ofdm通信的功能(This resource is the development of USRP using gnuradio tool. It mainly realizes the function of spectrum sensing and OFDM communication according to the result of spectrum sensing)

说明：  对铭泰读卡器不同扇区进行读写操作，初始化扇区，扇区信息加密。(Reading and Writing Mingtai Card Reader)

说明：  调用webrtc中的VAD算法，可以实现录音文件的语音端点检测，时延7.8ms(Calling VAD algorithm in webrtc, voice endpoint detection of recording file can be realized with a delay of 7.8ms)

多路复用写的一个可收发数据的串口应用程序(Write a multiplexer can send and receive serial data applications)

LFM线性调频波的MATLAB仿真 利用matlab软件设计匹配滤波器。具体包括： 1）：阐述脉冲压缩（匹配滤波）的基本原理； 2）：输入信号为线性调频信号，存在的噪声信号为白噪声； 3）：通过脉冲压缩处理，讨论输出信噪比的改善。 (The the LFM chirp wave MATLAB simulation using matlab software design matched filter. Specifically including: 1): elaborated pulse compression (the basic principle of the matched filter) 2): the input signal is a chirp signal, the noise present in the signal is white noise 3): by a pulse compression processing discussed output SNR improved.)