Analysis of Digital Pre-Distortion with I/O Interfaces for Analog Baseband Signal over Broadcasting Satellites

Masaaki Kojima; Yuki Koizumi; Masashi Kamei

doi:10.1587/comex.2022XBL0048

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引用する場合も本公開記事を引用してください。

Analysis of Digital Pre-Distortion with I/O Interfaces for Analog Baseband Signal over Broadcasting Satellites

Masaaki Kojima, Yuki Koizumi, Masashi Kamei

著者情報

キーワード: broadcasting satellite, non-linear distortion, external DPD adder, 64APSK

ジャーナルフリー早期公開

論文ID: 2022XBL0048

DOI https://doi.org/10.1587/comex.2022XBL0048

この記事には本公開記事があります。

The final version of this article is now available: Vol. 11 (2022), No. 7 pp. 435-440

詳細

抄録

Broadcasting satellite systems currently use multilevel modulation schemes, which are vulnerable to non-linear distortion, while their on-board amplifiers operate near the saturation point. We have developed a digital pre-distortion (DPD) embedded transmitter and demonstrated its effectiveness over a 12-GHz-band satellite transponder. To improve its versatility, we developed an external DPD adder, which enables existing transmitter to give an analog baseband signal its function. In this study, we confirm the effectiveness of the external DPD adder by evaluating the transmission performance of 64APSK over the satellite transponder.

責任著者(Corresponding author)

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