码域滤波的基本原理

Principle of Filtering in Code-domain

本文基于DS -CDMA系统中的线性多用户检测提出了码变换、离散码变换对的概念 ,主要阐述码 /时域滤波的基本原理 ,指出线性多用户检测是一种码 /时域滤波 。

Concepts of code transfer and discrete code transfer pair are proposed in this paper. Based on the linear multiuser detection in DS-CDMA systems, the authors describe the principle of filtering in code or time domain. We also point out that linear multiuser detection is a kind of filtering in code/time domain. Research on code-transfer matrix should be studied further.