电波科学学报2016，Vol.31Issue(5)：1009-1015,7.DOI:10.13443/j.cjors.2016080301
投弃式仪器数据传输信道时频响应求解方法
The calculation of transient and frequency response for vessel carried expendable measuring instruments channel
摘要
Abstract
When we use the transmission function or the electromagnetic analytic software to analyze the expandable measuring instruments transmission channel distributed parameter model,a certain amount of errors will occur.This paper presents a method to analyze the channel transient and frequency response based on finite difference time domain(FDTD)method and Baum-Liu-Tesche (BLT)equation.For the transient response analysis,an improved FDTD method is presented to analyze transient response in any location of channel with arbitrary terminal loads.For the frequency response analysis,the BLT equation is coupled with the thoughts of electromagnetic topology to analyze the frequency response in the node of transmission channel.Furthermore,the channel transient and frequency response are compared with the experimental measurement,and the test results are consistent with the theoretical results in the frequency range.It shows that in the channel working frequency range,the theoretical analysis is feasible for channel transient and frequency response analysis and thus can provide guidance for design of the matching circuit and improve the accuracy of transmission scheme.关键词
投弃式仪器/信道分布参数/时域有限差分法/BLT 方程/时频响应Key words
expendable measuring instruments/distributed parameters/finite difference time domain (FDTD)/BLT equation/transient and frequency response分类
信息技术与安全科学引用本文复制引用
刘宁,张如彬,金杰..投弃式仪器数据传输信道时频响应求解方法[J].电波科学学报,2016,31(5):1009-1015,7.基金项目
国家自然科学基金(41206031) （41206031）
