uwb_ppm_bpsk

实现LDPC码校验矩阵的构造，采用Mackay 1A方法(Implementation of LDPC code check matrix construction uses Mackay 1A method)

说明：  16QAM调制解调，包含QAM的调制解调Matlab程序(16QAM modem, including QAM modem matlab program)

基本通信信号的产生于识别，AM FM 2ASK 2FSK 2PSK QPSK的产生。（时域图 频域图 基带信号频谱 ）以及分类的识别方法仿真模型(Basic communication signal arising from the recognition, the AM FM 2ASK 2FSK 2PSK QPSK generation. (Time-domain diagram frequency domain Figure baseband signal spectrum) and the classification of simulation models of the identification method)

功率谱密度的估计算法，simulink实现，现代信号处理第三章仿真实现。(Power spectral density estimation algorithm, simulink realization of modern signal processing Chapter Simulation.)

opnet simulation of random access in CDMA network

直接序列扩频通信中采用QPSK调制时，须将产生的串行数据首先串并变换成两路，本程序就是实现这种串并变换！(Direct sequence spread spectrum communications using QPSK modulation, it is necessary to have a string of serial data and converted into the first two, the process is to realize such a string, and transform!)

RTD2660源码，可以作为参考或者开发之用。(The source of RTD2660.)

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)

这是一个在MATLAB环境下，UWB源码，很有参考价值(This is a MATLAB environment, UWB source, useful reference)

基于MATLAB的OFDM/OQAM调制系统的仿真与误码率测试(Simulation and BER MATLAB the OFDM/OQAM modulation system test)