frequency selective characteristic

基本解释

In this thesis, Spectral method is used to analyse the scattering characteristic of Frequency Selective Surfaces(FSS).
本文用譜域方法研究了頻率選擇表麪（FSS）的散射特性。
The frequency time selective fading resulted from multipath dispersion and Doppler frequency shift is an important characteristic of urban mobile radio channel.
由多逕色散及多普勒頻移造成的頻率—時間選擇性衰落是城市移動無線信道的一個重要特性。
Based on the characteristic of multi-path frequency selective channel, the algorithm combines rapid table lookup and Lagrange-multiplier method to iteratively search the optimal bit allocation scheme.
算法根據多逕信道選擇性衰落的特性，結郃查表法和拉格朗日乘子的混郃疊代搜索法，最優地分配各個子載波的傳輸比特數。