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发明名称
一种扩频多扯干扰对消技术
摘要
本发明公开了一种可用于同步码分多址(CDMA)系统及扩频通信系统的多址干扰对消技术。待传送的用户数据Ci首先在装置10与装置30产生的扩频码进行周期扩频,然后通过编码或数字滤波将码间干扰人为引入到扩频信号中;装置20对接收基带信号进行匹配滤波,并与装置30产生的本地扩频序列进行相关解扩,码间干扰的存在使多址干扰相互抵消,从而恢复传送的用户数据Co。采用该技术方案能够有效降低不同码道间的相互干扰,实现一种具有低复杂性和成本的同步码分多址系统及扩频通信系统。
申请公布号
CN1286547A
申请公布日期
2001.03.07
申请号
CN00129667.1
申请日期
2000.10.11
申请人
华苏重
发明人
华苏重
分类号
H04J13/00;H04B1/10
主分类号
H04J13/00
代理机构
代理人
主权项
1、一种扩频多址干扰对消技术,其特征在于:对经伪随机序列周期扩频后的码片流人为引入码片间干扰,确切地说,是将每个码元以编码方式或波形形成滤波的方式扩展到相邻的前后码元,使得在进行相关解扩处理时,由于码间干扰的存在,多址干扰被抵消。
地址
100083北京市海淀区牡丹园东里10楼104室
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