Advances in Tomographic Inversion for Ionospheric Imaging

电离层成像层析反演的进展

• 批准号: 9528146
• 负责人: Edward Fremouw
• 金额: $ 21.76万
• 依托单位: NorthWest Research Associates, Incorporated
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-03-01 至 1999-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9528146&HistoricalAwards=false
• 关键词: Advances; Tomographic; Inversion; Ionospheric; Imaging

The investigators will advance the state of ionospheric tomography by: (1) refining the "weighted, damped, least-squares" (WDLS) technique for tomographically inverting total electron content (TEC) records, (2) formalizing partition of over- and under-determined image parameters estimated by the WDLS technique, (3) constraining plasma density estimated in image cells to nonnegative values, and (4) generalizing the WDLS technique to permit systematic augmentation of TEC data with plasma-density measurements from any external source.

研究人员将通过以下方式推动电离层层析成像的进展：(1)改进用于层析反演总电子含量(TEC)记录的“加权、衰减、最小二乘”(WDLS)技术，(2)正式划分由WDLS技术估计的过确定和欠确定的图像参数，(3)将图像单元中估计的等离子体密度限制为非负值，以及(4)推广WDLS技术，以允许使用来自任何外部来源的等离子体密度测量来系统地增强TEC数据。