关于网络通信信号传输质量性能优化仿真

Optimization of Signal Quality Performance in Network Communication and its Simulation

对通信信号传输质量性能的优化,能够有效提升通信网络运行稳定性。对信号传输质量的优化,需要弱化信号干扰,计算每个子频带信号的平均值,确立干扰弱化阈值函数,完成信号传输质量的优化。传统方法利用硬阈值和软阈值小波对信号进行多尺度分解,给出干扰弱化阈值,但忽略了计算子频带信号的平均值,导致信号传输质量优化效果不理想。提出一种基于反加窗的网络通信过程干扰弱化方法。该方法先对输入的通信信号进行傅立叶变换,对通信信号进行频域干扰检测,构造一个低通原型滤波器,计算每个子频带信号的平均值,确立干扰弱化阈值函数,由此完成网络通信过程干扰弱化。仿真证明,所提方法干扰弱化精度高,可以有效地弱化网络通信过程中的干扰,为保障网络通信质量奠定了基础。

An interference mitigation method in the process of network communication based on inverse windowing algorithm is proposed. Firstly, Fourier transformation is carried for the inputting communication signals. The frequency domain interference detection is performed for commumication signals to make a low - pass prototype filter. The average value of each sub - band signal is calculated to determine the threshold function of interference mitigation. Thus, the interference mitigation in the process of network communication is completed. Simulation results show that the proposed method has high accuracy in weakening interference and can effectively weaken the interference in the network communication.