声表面波可程序选通滤波组件  

Programmable SAW Selective Filter Bank

作　　者：黄广伦[1] 欧黎[1] 吕翼[1] 赵凤明[1] 

机构地区：[1]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2001年第3期167-169,共3页Piezoelectrics & Acoustooptics

摘　　要：通信的现代化使得空间电磁环境日益密集和复杂强劲 ,在码分多址 (CDMA)扩频跳频通信系统中 ,必须解决系统的抗干扰问题。文章给出了一种新技术 ,即 :采用声表面波 (SAW)技术 ,直接在接收机前端或发射端的宽带信道上 ,自适应地选通不同的 SAW信道滤波器抑制空间以及系统内部的杂波信号 ,提高抗干扰能力。介绍了一个 16信道声表面波可程序选通滤波组件。本组件产品已用于接收机前端宽带接收信道的自适应抗干扰 ,证明该产品对于改善宽带 CDMA信道的接收灵敏度和加强抑制干扰能力均有好的效果。属于新技术新产品 ,有很好的应用前景。Due to the modernization of communication,the space electromagnetic environment becomes increasingly complex and crowded,therefore the problem of anti interference in CDMA spread specfrun communication system.A new technology using SAW is presented in this paper,that is,different SAW channel filters are selected self adaptively in the wideband channel of receiver frontend or emitting and to reject the clutter in space and system.A 16 channel programmable SAW selective filter band has applied for the self adapting anti interference in the receiver frontend.Practically this new product,with good application protential,can greatly improve the receiving sensitivity and the ability to reject interference.

关 键 词：声表面波 抗干扰 可程序选通滤波组件 码分多址 扩频跳频通信 

分 类 号：TN65[电子电信—电路与系统] TN914.4