摘要
以提高全球定位系统(Global Positioning System,GPS)信号反演蒸发波导的精度、简化现有蒸发波导折射率剖面模型为目的,通过分析四参数蒸发波导剖面模型的GPS海面散射信号功率特性,改进得到了一种三参数模型——高敏感度的蒸发波导折射率剖面模型,并针对其GPS海面散射信号功率特性,同现有剖面模型进行了对比分析,通过粒子群优化算法的反演结果验证了三参数模型的高敏感度在反演中的优势.
In order to improve the inversion precision of evaporation duct based on GPS signal and simplify the current refractive index profile model,we improve and put forward a new evaporation duct refractive index profile model-three parameter model on the basis of analysis of four parameter evaporation duct profile model sea surface scattering signal power characteristics.Then we compare the scattering signal power characteristics of each model by simulating and confirm that the new model have better sensitivity in application of inversion by particle swarms optimization algorithm.
出处
《电波科学学报》
EI
CSCD
北大核心
2015年第5期973-979,共7页
Chinese Journal of Radio Science
基金
国家自然科学基金(41476089)
关键词
蒸发波导
反演
散射信号功率
剖面模型
evaporation duct
inversion
scattering signal power
profile mode
