Improving the Topside Profile of Ionosonde with TEC Retrieved from Spaceborne Polarimetric SAR
Improving the Topside Profile of Ionosonde with TEC Retrieved from Spaceborne Polarimetric SAR
复制标题
利用从星载偏振 SAR 中获取的 TEC 改善电离探空仪的上部剖面
DOI:
10.3390/s19030516
复制
发表时间:
2019-01
期刊:
影响因子:
3.9
通讯作者:
Haisheng Zhao
中科院分区:
文献类型:
--
作者:
Cheng Wang;Wulong Guo;Haisheng Zhao
Signals from spaceborne polarimetric synthetic aperture radar will suffer from Faraday rotations when they propagate through the ionosphere, especially those at L-band or lower frequencies, such as signals from the Phased Array type L-band Synthetic Aperture Radar (PALSAR). For this reason, Faraday rotation compensation should be considered. On the other hand, Faraday rotation could also be retrieved from distorted echoes. Moreover, combining Faraday rotation with the radar parameters and the model of magnetic field, we could derive the total electron content (TEC) along the signal path. Benefiting from the high spatial resolution of the SAR system, TEC obtained from PALSAR could be orders of magnitude higher in spatial resolution than that from GPS. Besides, we demonstrated that the precision of TEC from PALSAR is also much higher than that from GPS. With the precise TEC available, we could fuse it with data from other ionosphere detection devices to improve their performances. In this paper, we adopted it to help modify the empirically modeled topside profile of ionosonde. The results show that the divergence between the modified profile and the referenced incoherent scattering radar profile reduced by about 30 percent when compared to the original ionosonde topside profile.
登录
查看更多内容
DOI:
10.1007/bf02520897
发表时间:
1984-06
期刊:
Bulletin géodésique
影响因子:
--
作者:
G. Hartmann;R. Leitinger
通讯作者:
G. Hartmann;R. Leitinger
影响因子:
8.2
作者:
F. Meyer
通讯作者:
F. Meyer
DOI:
10.5047/eps.2011.03.001
发表时间:
2011-06
期刊:
Earth, Planets and Space
影响因子:
--
作者:
B. Reinisch;I. Galkin
通讯作者:
B. Reinisch;I. Galkin
DOI:
10.1016/j.jastp.2005.01.009
发表时间:
2005-08
影响因子:
1.9
作者:
B. Reinisch;Xueqin Huang;I. Galkin;V. Paznukhov;A. Kozlov
通讯作者:
B. Reinisch;Xueqin Huang;I. Galkin;V. Paznukhov;A. Kozlov
影响因子:
8.2
作者:
Cheng Wang;Liang Chen;Lu Liu
通讯作者:
Lu Liu