NDLI: Depolarization Mitigation using Frequency Offset in the Dual-Polarized X-Band for EESS

Content Provider	IEEE Xplore Digital Library
Author	Sang Gyu Lee Sung Woong Ra Song Jae Lee
Copyright Year	2006
Description	Author affiliation: Korea Aerosp. Res. Inst., Daejeon (Sang Gyu Lee)
Abstract	Dual-polarization frequency reuse technique has been actively adopted in space-to-earth links for earth exploration satellite service (EESS) to meet growing demands on high rate data transmission over the restrictedly allocated bandwidth in X-band. However, the performance of the dual-polarization system is affected by depolarization due to tropospheric propagation impairments such as rain drops and ice particles. In this paper, we investigate the offset scheme as an approach to mitigate the depolarization that always exists inherently in the dual-polarized satellite system. We present numerical formulas to estimate the depolarization effects as a function of the offset frequency, using theoretically derived CPA and XPD, in dual-polarized X-band down link channels for EESS. In addition, we present an example of link budget evaluated by using the calculated parameters
Starting Page	25
Ending Page	28
File Size	5330659
Page Count	4
File Format	PDF
ISBN	1424401186
DOI	10.1109/IWSSC.2006.255983
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-14
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Earth Satellites Rain Bandwidth Attenuation Frequency estimation Hardware Ice Modulation coding Radio spectrum management
Content Type	Text
Resource Type	Article

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