2026-09-21T07:47:43Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/80776 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Kudeki, Erhan Feng, Zhaomei 2015-09-25T20:08:06Z 2015-09-25T20:08:06Z 10000-01-01 2002 2002 The full correlation method is formulated and applied to the June 2002 data. Compared to the differential-phase method, this method is different in the sense that it utilizes the real and imaginary parts of the cross-correlation of orthogonal antenna outputs at the high altitudes where SNR is low and the off-diagonal elements of the covariance matrix of measurement errors can be ignored. An advantage of this is that the cross-correlation data have Gaussian distributed errors even when the SNR is weak, whereas under the same conditions the phase errors are no longer Gaussian. The determination of noise levels has been improved with the full correlation method. Made available in DSpace on 2015-09-25T20:08:06Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3069992.pdf: 4932827 bytes, checksum: e4ea3c3fe63d3e9063d4f99491c8cec7 (MD5) Previous issue date: 2002 Embargo set by: Seth Robbins for item 82058 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 123 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002. http://hdl.handle.net/2142/80776 (MiAaPQ)AAI3069992 eng Geophysics Equatorial F -Region Plasma Density Estimation With Incoherent Scatter Radar Using a Transverse -Mode Differential -Phase Method text Electrical Engineering Electrical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.