2.-Ensuring-Quality

叠加训练序列的最小二乘信道估计与最小均方误差均衡，QPSK调制，做了4次迭代估计的性能对比。(superimposed training, least squares (LS) channel estimation, MMSE equalizer, QPSK modulation, 4 times iteration.)

This document describes about the digital modulation techniques especially about spread spectrum.

说明：  半波天线增益及阻抗以及e面方向性图，h面方向性图，立体方向性图(Half-wave antenna gain and impedance, as well as e surface directional map, h surface directional map, a three-dimensional directional diagram)

对FBMC通信系统进行仿真，采用扩频技术进行调制。(FBMC simulation of communication systems using spread spectrum modulation techniques.)

说明：  ofdm信道估计，采用了LS算法，DFT进行插值(OFDM channel estimation adopts LS algorithm and DFT interpolation)

基于压缩感知的超宽带信道估计方法的研究.PDF(Research on CS-based Channel Estimation Methods for UWB Communications)

说明：  ofdm system 1. applyOFDMChannel 2. calculateOFDMBER 3. generateOFDMSignal 4. getOFDMPreambleAndPilot 5. OFDMReceiver 6. OFDMSynchronizationExample 7. OFDMTransmitter 8. processOFDMScopes 9. receiveOFDMSignal

说明：  实现了3GPP 38.901中基础的信道(basic realization of 3GPP 38.901 channel model)

说明：  QPSK调制仿真与分析，使用matlab仿真实现QPSK相干调制与解调，通过AWGN信道，画出误比特率曲线(Generate digital baseband signal, add AWGN Gaussian white noise to transmit in the channel, detect the original baseband signal, draw theoretical and simulation error rate curve, QPSK modulation simulation and analysis, use matlab simulation to realize QPSK coherent modulation and demodulation, draw error rate curve through AWGN channel)

雷达模糊函数仿真与信号处理。<br />radar ambiguity function simulation and signal processing .