frequency selective characteristic

基本解釋

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面（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.
由多徑色散及多普勒頻移造成的頻率—時(shí)間選擇性衰落是城市移動(dòng)無(wú)線信道的一個(gè)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(jù)多徑信道選擇性衰落的特性，結(jié)合查表法和拉格朗日乘子的混合迭代搜索法，最優(yōu)地分配各個(gè)子載波的傳輸比特?cái)?shù)。