講演名 2012-10-11
Turbo equalizer/decoder performances of nonlinear channels due to different classes of GaN HPAs for X-band nano satellite high-speed downlink system(ICSANE 2012 (International Conference on Space, Aeronautical and Navigational Electronics))
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抄録(和)
抄録(英) A high speed downlink communication system is required to meet different applications for nano satellites. Therefore, it is essential for implementing a power and weight limited transmitter in the satellites. We have developed different classes of GaN power amplifiers (PAs) for transmitter of nano satellites. The PA is a key factor in determining the satellite channel performance, and then classes AB and F PAs are modeled to evaluate the system characteristics. Our recent studies have focused on the efficient system adopting CCSDS 131.2-B signaling formats with the limited satellite transmitter incorporating a powerful ground station receiver. To overcome the channel distortions, a memoryless channel predistortion scheme at the transmitter and a SCCC turbo equalization employing non-linear distortion compensation techniques has been developed at the receiver. We then evaluate system performances by implementing newly developed classes AB and F PAs.
キーワード(和)
キーワード(英) GaN PA / nano/small satellite / satellite communication system / SCCC / turbo equalization / predistortion
資料番号 SANE2012-71
発行日

研究会情報
研究会 SANE
開催期間 2012/10/3(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Space, Aeronautical and Navigational Electronics (SANE)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) Turbo equalizer/decoder performances of nonlinear channels due to different classes of GaN HPAs for X-band nano satellite high-speed downlink system(ICSANE 2012 (International Conference on Space, Aeronautical and Navigational Electronics))
サブタイトル(和)
キーワード(1)(和/英) / GaN PA
第 1 著者 氏名(和/英) / Naohiko Iwakiri
第 1 著者 所属(和/英)
The University of Tokyo
発表年月日 2012-10-11
資料番号 SANE2012-71
巻番号(vol) vol.112
号番号(no) 229
ページ範囲 pp.-
ページ数 6
発行日