【摘要】 在码分多址系统中,多址干扰和远近效应是影响系统性能、限制系统容量的主要因素。为了抑制多址干扰和远近效应对DS/CDMA系统的影响,可以采取各种数字滤波技术。本文介绍了DS/CDMA系统中目前所采用的时域和空间域数字滤波技术,然后对这两种数字滤波技术提出了自己的一些看法。更多还原

【Abstract】 The multi-access interference (MAI) and near-far problem are the major factors to decrease the performance and restrict the capacity of the CDMA systems. In order to limit the effects of MAI and near-far problem on the DS/CDMA systems, various digital filter techniques can be employed. This paper introduces the digital filter techniques on the temporal and spatial domains which are used widely at present. Then some opinions about the two filter techniques are presented.更多还原