基于MAX274的低通滤波器设计方法  

Design Method of Low-pass Filter Based on MAX274

作　　者：王伟 邓秀华 张恒 WANG Wei;DENG Xiuhua;ZHANG Heng(No.710 R&D Institute,CSSC,Yichang 443003,China;Qingjiang Innovation Center,Wuhan 430076,China)

机构地区：[1]中国船舶集团有限公司第七一〇研究所,湖北宜昌443003 [2]清江创新中心,湖北武汉430076

出　　处：《数字海洋与水下攻防》2022年第3期273-277,共5页Digital Ocean & Underwater Warfare

摘　　要：介绍了一种基于MAX274芯片设计制作多通道有源低通滤波器的方法,并通过MATLAB仿真得到滤波器频率响应曲线,验证其在相应频带内有较好的滤波与增益性能。该设计体积小、单片集成、方便调试,应用于某大深度潜标项目水声测量装置中,能够实现对深海环境背景下目标信号的监测以及海洋环境噪声的长期定点采集。This paper introduces a design method of multi-channel active low-pass filter based on MAX274chip,and low-pass filter frequency response curve is obtained and verified by Matlab simulation. It’s observed that the low-pass filter’s filtering and gain performance in the corresponding frequency band is fine. This design is small in size,monolithic and easy to debug. When used in underwater acoustic measurement device of a large depth submersible project,this device can realize the monitoring of target signal under the deep sea background and long-term fixed-point acquisition of marine environmental noise.

关 键 词：MAX274 水声测量 低通滤波 

分 类 号：TN713.4[电子电信—电路与系统]