Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Tomoya Yamaoka"'
Autor:
Tomoya Yamaoka, Satoshi Kageme
Publikováno v:
IEEE Access, Vol 11, Pp 5296-5305 (2023)
Window functions are required to achieve excellent frequency resolution, peak sidelobe ratio, and sidelobe decay. The cosine-sum window function satisfies these requirements. However, conventional cosine-sum windows limit the number of terms and coef
Externí odkaz:
https://doaj.org/article/46bcc89376cd46a7917597e66872b985
Publikováno v:
IEICE Communications Express. 5:44-48
Publikováno v:
IGARSS
Synthetic Aperture Radar (SAR) can take a fine radar image without relation to sunshine condition. Recently, video generated from SAR is discussed. The radar video offers the practical understanding of the target motion without the added implement. T
Autor:
Teruyuki Hara, Tomoya Yamaoka
Publikováno v:
IGARSS
Synthetic Aperture Radar (SAR) can take a fine radar image without relation to sunshine condition, so it is important to propose the display method that fulfills a user's demand. SAR provides some information with high-level process. To confirm both
Publikováno v:
IEICE Transactions on Communications. :643-646
Cooperative diversity using space-time codes offers effective space diversity with low complexity, but the scheme needs the space-time coding process in the relay nodes. We propose a simple cooperative relay scheme that uses space-time coding. In the
Publikováno v:
IEICE Transactions on Communications. :1636-1640
We propose 3-hop cooperative diversity using QOSTBC (Quasi-Orthogonal Space-Time Block Code) [1], which offers 3-hop cooperative diversity without signal separation in relay nodes. The key of our proposed scheme is encoding signal sequence in differe
Autor:
Kei Suwa, Masayoshi Tsuchida, Kazuo Kawamura, Tomoya Yamaoka, Masao Tsuji, Masatada Furuhata, Nobuo Kumagae, Kenji Tatsumi
Publikováno v:
IGARSS
Along track interferometric (ATI) synthetic aperture radar (SAR) has the capability of detecting moving targets and measuring the line-of-sight velocity of the target. With the ATI SAR, the current velocity map can be obtained by combining two perpen
Publikováno v:
25th AIAA International Communications Satellite Systems Conference (organized by APSCC).
This paper discusses 8PSK/OFDM transmission in nonlinear satellite channel. We propose an effective compensation scheme for nonlinear distortion with high coding rate. Proposed compensation scheme is composed by bit-interleaved coded modulation with