电波科学学报2017，Vol.32Issue(3)：286-291,6.DOI:10.13443/j.cjors.2017021601
机载GNSS海面回波信号的模拟
Simulation on airborne GNSS echo signal from sea surface
摘要
Abstract
In order to simulate the real sea surface echo signals of GNSS,sea clutter signal is essential besides GNSS reflection signal from the sea surface.Modeling and simulation of sea clutter is the decisive factor of the fidelity of echo signal simulation.In this paper,the grid mapping method is used to divide the sea clutter elements,and the appropriate amplitude distribution model and power spectrum model are established to complete the modeling of airborne sea clutter signal.Finally,the simulation of sea echo signal is carried out and compared with the measured data.The result indicates that the correlation coefficient between the simulation data and the measured data is better than 0.9,which proves the validity and rationality of the method.关键词
GNSS-R/信号模拟器/海洋遥感/杂波信号/瑞利分布Key words
GNSS-R/signal simulator/ocean remote sensing/clutter signal/rayleigh distribution分类
信息技术与安全科学引用本文复制引用
祁永强,张波,杨东凯,张彦仲..机载GNSS海面回波信号的模拟[J].电波科学学报,2017,32(3):286-291,6.基金项目
国家自然科学基金(61171070) （61171070）
