31位低频声表面波可程序匹配滤波器  

31 Bit Low Frequency SAW Programmable Matched Filter

作　　者：刘积学[1] 廖代材[1] 魏强[1] 

机构地区：[1]四川压电与声光技术研究所

出　　处：《压电与声光》1996年第6期365-368,共4页Piezoelectrics & Acoustooptics

摘　　要：报道了３１位声表面波可程序匹配滤波器的结构、设计和性能参数。声表面波可程序抽头延迟线是近年来快速发展的直扩技术广泛应用的一种器件。它的强大信号处理能力和极高的运算速度，使得直扩序列信号的快速同步及匹配滤波较传统的技术大为简化。文章报道的３１位声表面波低频可程序抽头延迟线是一种用于扩频抗干扰通信系统所用的关键信号处理器件。在研制过程中，采用的ＣＯＭＳ／ＳＯＳ等新技术以及分裂抽头等新设计，使器件的时钟速率和主旁瓣比关键技术指标获得了较大的提高。The structure,design and performance of SAW programmable matched filters are presented. In recent years, the development of programmable tapped delay line is very fast, and it has found wide applications in direct spread spectrum technology. Its high abilities in signal processing and fast calculation make the signal synchronization and matched filtering easier than the traditional technology. This paper reports a 31 bit low frequency SAW programmable tapped delay line. It is a key device in signal processing of interference free spread spectrum communication system. In the development, the COMS/SOS techniques and the design of spliting tap are used. These new techniques improved the main specifications of the device to meet the system requirements, such as timing rate, ratio of mainlobe and sidelobe.

关 键 词：声表面波 可程序抽头 匹配滤波器 

分 类 号：TN713.6[电子电信—电路与系统]