論文
公開件数:47件
No. 種別 査読の有無 標題 単著・共著区分 著者 誌名 巻号頁 出版日 ISSN DOI URL
1 一般論文

An Improved Quantization Scheme for Lattice-Reduction Aided MIMO Detection Based on Gram-Schmidt Orthogonalization
共著
Wei Hou, Tadashi Fujino, Toshiharu Kojima
IEICE Trans. on Fundamentals of Electronics, Communications and Computer Sciences
E96-A/ 12, 2405-2414
2013/12



2 一般論文

Low complexity MIMO detection using OSIC with conditional list generation
共著
Wei Hou, Tadashi Fujino, Toshiharu Kojima
IEICE Communications Express (ComEX)
2/ 10, 447-452
2013/10



3 一般論文

Quantization Error Reduction for MIMO Detection Based on Orthogonal Lattices

Wei Hou, Tadashi Fujino, Toshiharu Kojima
IEICE Communications Express
2/ 2, 42-48
2013/02



4 一般論文

Adaptive Tree Search Detection with Variable Path Expansion Based on Gram-Schmidt Orthogonalization in MIMO Systems

Wei Hou, Tadashi Fujino, Toshiharu Kojima
Journal of Selected Areas in Telecommunications
2012/ July Edition
2012/07



5 一般論文

タイミングオフセット多重化SS方式の初期捕そく方式に関する一検討

小島年春, 大久保政二, 久保博嗣, 村上圭司
電子情報通信学会論文誌B
J86-B/ 10, 2245-2248
2003/10



6 一般論文

時間ダイバーシチを利用したヘリコプタ衛星通信用高精度AFC方式

小島年春, 打木達也, 大久保政二, 谷口順
電子情報通信学会論文誌 B
J85-B/ 10, 1728-1737
2002/10



7 一般論文

適応型最ゆう系列推定と多重遅延検波の関係とその無線通信への応用

久保博嗣, 小島年春, 谷口順
電子情報通信学会論文誌 B
J84-B/ 11, 1909-1917
2001/11



8 一般論文

直接波がドップラーシフトしたライスフェージング環境に適した周波数オフセット補償方式

浅原隆, 小島年春, 三宅真
電子情報通信学会論文誌 B
J84-B/ 7, 1265-1275
2001/07



9 一般論文

An Improved Pilot Symbol Assisted Coherent Detection Scheme for Rician Fading Channels

Takashi ASAHARA, Toshiharu KOJIMA, Makoto MIYAKE
IEICE TRANSACTIONS on COMMUNICATIONS
E82-B/ 12, 2041-2048
1999/12



10 一般論文

Carrier Slip Compensating Time Diversity Scheme for Helicopter Satellite Communication Systems

Tatsuya UCHIKI, Toshiharu KOJIMA, Makoto MIYAKE, Tadashi FUJINO
IEICE TRANSACTIONS on COMMUNICATIONS
E81-B/ 12, 2311-2317
1998/12



11 一般論文

多重位相遅延検波合成ダイバーシチ方式 - 移動体通信環境における特性の検討 -

小島年春, 三宅真, 藤野忠, 森永規彦
電子情報通信学会論文誌 B-II
J81-B-II/ 9, 846-854
1998/09



12 一般論文

差動PSK信号位相の系列推定を行う遅延検波方式

小島年春, 三宅真, 藤野忠
電子情報通信学会論文誌 B-II
J76-B-II/ 10, 783-792
1993/10



13 一般論文

忘却係数による加重平均を行うDS/SS通信用RAKE受信機

浅原隆, 小島年春, 三宅真, 藤野忠
電子情報通信学会論文誌 B-II
J76-B-II/ 9, 777-780
1993/09



14 一般論文

符号化率可変連接符号化方式の検討

小島年春, 吉田英夫, 藤村明憲, 三宅真, 山岸篤弘, 藤野忠
電子情報通信学会論文誌 A
J75-A/ 8, 1240-1249
1992/08



15 一般論文

Performance of Soft Decision Digital Matched Filter in Direct-Sequence Spread-Spectrum Commu-nication Systems

Nobuhisa KATAOKA, Toshiharu KOJIMA, Makoto MIYAKE, Tadashi FUJINO
IEICE TRANSACTIONS
E74/ 5, 1115-1122
1991/05



16 国際会議プロシーディングス等

A Spectral Analysis Based Channel Estimation Method for Time Diversity Combining in Helicopter Satellite Communications

Toshiharu Kojima, Seiya Yako
Proc. of 2021 International Conference on Advanced Technologies for Communications (ATC'21)
152-155
2021/10



17 国際会議プロシーディングス等

A Novel ZF and MMSE Receiver for Modified Walsh-Hadamard Code Division Multiplexing in Helicopter Satellite Communications

Toshiharu Kojima, Tsubasa Yamada
Proc. of 2021 International Conference on Advanced Technologies for Communications (ATC'21)
18-21
2021/10



18 国際会議プロシーディングス等

An Improved AFC Scheme for Modified Walsh-Hadamard Code Division Multiplexing

Anna Himeno, Toshiharu Kojima
Proc. of 2020 International Conference on Advanced Technologies for Communications (ATC'20)
79-83
2020/10



19 国際会議プロシーディングス等

An Initial Acquisition Scheme Combined with Carrier Recovery for Modified Walsh-Hadamard Code Division Multiplexing

Toshiharu Kojima, Yota Yamamura
Proc. of 2020 International Conference on Advanced Technologies for Communications (ATC'20)
74-78
2020/10



20 国際会議プロシーディングス等

An Accurate AFC Scheme for Walsh-Hadamard
Code Division Multiplexing

Toshiharu Kojima, Yuki Kanamaru, Anna Himeno
Proc. of 2019 International Conference on Advanced Technologies for Communications (ATC'19)
79-83
2019/10



21 国際会議プロシーディングス等

Inter-Code Interference Reduction in
Walsh-Hadamard Code Division Multiplexing for Helicopter Satellite Communications

Genta Muto, Toshiharu Kojima
Proc. of 2019 International Conference on Advanced Technologies for Communications (ATC'19)
19-22
2019/10



22 国際会議プロシーディングス等

A Chip Timing Recovery Scheme for Walsh-Hadamard Code Division Multiplexing
共著
Yuta Kato, Toshiharu Kojima
Proc. of 2019 3rd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom)
1-4
2019/03



23 国際会議プロシーディングス等

An Accurate Time Diversity Combining with a Novel Channel Estimation for Helicopter Satellite Communications
共著
Daijiro Sato, Toshiharu Kojima
Proc. of 2018 International Conference on Advanced Technologies for Communications (ATC'18)
89-93
2018/10



24 国際会議プロシーディングス等

A Low Inter-Code Interference Walsh-Hadamard Code Division Multiplexing for Helicopter Satellite Communications
共著
Toshiharu Kojima, Genta Muto
Proc. of 2018 International Conference on Advanced Technologies for Communications (ATC'18)
1-4
2018/10



25 国際会議プロシーディングス等

A Channel Estimation Scheme for Helicopter Satellite Communications Based on Pseudo Bit Error Rate
共著
Shunpei Kutsukake, Toshiharu Kojima
Proc. of the 2017 International Symposium on Electrical and Electronics Engineering (ISEE 2017)
269-273
2017/11



26 国際会議プロシーディングス等

A Study on Code Synchronization for Time Diversity in Helicopter Satellite Communications
共著
Ryosuke Ito, Toshiharu Kojima
Proc. of 2017 International Conference on Advanced Technologies for Communications (ATC'17)
103-107
2017/10



27 国際会議プロシーディングス等

An Initial Acquisition Scheme for Walsh-Hadamard Code Division Multiplexing
共著
Toshiharu Kojima, Yuki Nagashima
Proc. of 2016 International Conference on Advanced Technologies for Communications (ATC'16)
399-396
2016/10



28 国際会議プロシーディングス等

Performance of Walsh-Hadamard Code Division Multiplexing in Helicopter Satellite Communications

Toshiharu Kojima, Shuri Fujiwara
Proc. of 2015 International Conference on Advanced Technologies for Communications (ATC'15)
662-665
2015/10



29 国際会議プロシーディングス等

An Improved Time Diversity Combining for Helicopter Satellite Communications

Toshiharu Kojima, Yurii Takanashi
Proc. of 2015 International Conference on Advanced Technologies for Communications (ATC'15)
6-9
2015/10



30 国際会議プロシーディングス等

A Hybrid Walsh-Hadamard Code Division Multiplexing for Helicopter Satellite Communications

Ayako Suzuki, Toshiharu Kojima
Proc. of 2014 International Conference on Advanced Technologies for Communications (ATC'14)
1-4
2014/10



31 国際会議プロシーディングス等

A Novel AFC Scheme for Walsh-Hadamard Code Division Multiplexing
共著
Toshiharu Kojima, Ayako Suzuki
Proc. of 2013 International Conference on Advanced Technologies for Communications (ATC'13)
271-274
2013/10



32 国際会議プロシーディングス等

Ecient Quantization Scheme for Lattice-Reduction Aided MIMO Detection
共著
Wei Hou, Tadashi Fujino, Toshiharu Kojima
Proc. of 2013 International Conference on Advanced Technologies for Communications (ATC'13)
275-279
2013/10



33 国際会議プロシーディングス等

Adaptive Candidate Selection Scheme in QRM-MLD Algorithm for MIMO Detection

Wei Hou, Tadashi Fujino, Toshiharu Kojima
Proc. of WiMob 2012
502-506
2012/12



34 国際会議プロシーディングス等

A Fast Acquisition AFC for Helicopter Satellite Communications

Toshiharu Kojima, Shingo Yasue
Proceedings of 2012 International Conference on Advanced Technologies for Communications
106-109
2012/10



35 国際会議プロシーディングス等

MIMO System and Its Detection for Wireless Communication

Wei Hou, Tadashi Fujino, Toshiharu Kojima
Proc. of Int. WCEIT 2012
1
2012/08



36 国際会議プロシーディングス等

A Novel SLM PAPR Reduction of OFDM Signals without Side Information

Toshiharu Kojima, Shohei Iwamoto, Yuki Shida, Tadashi Fujino
IEEE International Symposium on Signal Processing and Information Technology
321-325
2010/12



37 国際会議プロシーディングス等

A Study of SLM PAPR Reduction of OFDM Signals without Side Information

Toshiharu Kojima, Yuki Shida, Tadashi Fujino
Proceedings of 2010 International Conference on Advanced Technologies for Communications
189-192
2010/10



38 国際会議プロシーディングス等

A Novel AFC Scheme with Time Diversity Combining for Helicopter Satellite Communications

Toshiharu Kojima, Batmunkh Batbaatar, Chuluunsukh Batzorig, Tadashi Fujino
Proceedings of 2009 International Conference on Advanced Technologies for Communications
304-307
2009/10



39 国際会議プロシーディングス等

Pre-Detection Time Diversity Combining with Accurate AFC for Helicopter Satellite Communications

Toshiharu Kojima, Chuluunsukh Batzorig, Tadashi Fujino
Proceedings of 2008 International Conference on Advanced Technologies for Communications
309-312
2008/10



40 国際会議プロシーディングス等

A novel demodulation scheme for PSK-FM command signal based on DS/SS technique

Toshiharu Kojima, Takehiko Sagara, Futaba Ejima, Keishi Murakami
Proceedings of 21st AIAA International Communications Satellite Systems Conference
1
2003/04



41 国際会議プロシーディングス等

Viterbi Decoding with Per-Survivor Processing of Adaptive Array Antenna

Tatsuya UCHIKI, Toshiharu KOJIMA, Makoto MIYAKE
2000 IEEE 51st Vehicular Tech-nology Conference
1295-1299
2000/05



42 国際会議プロシーディングス等

A Novel Pilot Symbol Assisted Coherent Detection Scheme for Rician Fading Channels

Takashi ASAHARA, Toshiharu KOJIMA, Makoto MIYAKE
The First International Symposium on Wireless Personal Multimedia Communications
236-241
1998/11



43 国際会議プロシーディングス等

Carrier Slip Compensating Time Diversity Scheme for Helicopter Satellite Communication Systems

Tatsuya UCHIKI, Toshiharu KOJIMA, Makoto MIYAKE, Tadashi FUJINO
17th AIAA International Communications Satellite Systems Conference
635-641
1998/02



44 国際会議プロシーディングス等

Design of an Anti-Rician-Fading Modem for Mobile Satellite Communication Systems

Toshiharu KOJIMA, Fumio ISHIZU, Makoto MIYAKE, Keishi MURAKAMI, Tadashi FUJINO
International Mobile Satellite Con-ference 1995
13-18
1995/06



45 国際会議プロシーディングス等

A Theoretical Approach to Digital Demodulation in Direct-Sequence Spread-Spectrum Commu-nication Systems

Toshiharu KOJIMA, Nobuhisa KATAOKA, Makoto MIYAKE, Tadashi FUJINO
1991 Global Satellite Communication Symposium
383-388
1991/05



46 国際会議プロシーディングス等

A Study on Acquisition of Direct-Sequence Spread-Spectrum Signals Using Soft Decision Digital Matched Filtering

Nobuhisa KATAOKA, Toshiharu KOJIMA, Makoto MIYAKE, Tadashi FUJINO
IEEE Singapore International Conference on Communication Systems
1064-1068
1990/11



47 国際会議プロシーディングス等

Design And Performance Of Direct-sequence Spread-spectrum Modem Using Soft Decision Digital Matched Filter

Makoto Miyake, Toshiharu Kojima, Nobuhisa Kataoka, Tadashi Fujino
Proceedings of IEEE International Symposium on Spread Spectrum Techniques and Applications
135-139
1990/09