GprsTest

LDPC性能仿真(LDPC performance simulation)

多径时变（多普勒效应）信道的文献讲解和相关仿真程序。(Multipath literature to explain the change (Doppler effect) channel and related simulation program.)

802.11 Wireless Networks

建立无线传感网中节点路由的减少重传次数的一种算法(An algorithm to establish the number of node routing in wireless sensor networks to reduce retransmission)

说明：  瑞利信道下的盲源分离算法可以实现干扰信号和源信号的有效分离(Blind source separation algorithm in Rayleigh channel)

说明：  盘形凸轮理论轮廓和实际轮廓的绘制，包括滚子(Drawing of theoretical and actual contours of disc cam)

说明：  简单实现基于加权分数傅里叶变换的混合载波系统(Simple Implementation of Hybrid Carrier System Based on Weighted Fractional Fourier Transform)

说明：  当今世界电子对抗日益激烈，对于雷达低截获和抗干扰能力的研究越来越受到关注。OFDM (Orthorgonal Frequency Division Multiplexing，正交频分复用)雷达具有大时宽带宽积、波形设计方法灵活、频谱利用率较高以及低截获性能好的特性，因此逐渐成为雷达领域的重点研究方向。除此之外，OFDM信号时域和频域波形都比较复杂，当雷达信号采用OFDM技术时，敌方很难精确估计发射信号波形和瞬时频率，使得截获机不容易分析出检测到的雷达信号。当面对敌方的欺骗式干扰时，对于同样具有大时宽带宽积的线性调频信号，OFDM信号具有更好的抗欺骗式干扰的性能，因此OFDM技术在雷达上的运用愈来愈得到关注。(As electronic warfare becomes increasingly fierce, low intercept probability radar has become an important research filed in electronic countermeasures. OFDM (Orthorgonal Frequency Division Multiplexing) radars have gradually emerged due to their high spectrum efficiency, large time-bandwidth product, flexible waveform design methods, and low intercept probability.In addition, because of the complex time-frequency characteristics of the transmitted signal in OFDM radar, the enemy is difficult to estimate the transmitted signal waveform and instantaneous frequency.When faced with enemy deception interference, OFDM signals have better anti-spoofing performance for LFM signals that also have a large time-bandwidth bandwidth product. Therefore, the use of OFDM technology in radar is attracting more and more attention. .)

说明：  一个基于OPNET的D2D通信模拟代码，主要是简单的模型(A D2D communication simulation code based on OPNET)

基于独立成分分析（ICA）的盲源分离，对MIMO进行信号检测。在信道条件未知的情况下将两路信号分离(Blind source separation based on independent component analysis (ICA) is used to detect MIMO signals. Two channel signals are separated in the case of unknown channel conditions)