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1. (WO2019043748) ADAPTIVE EQUALIZATION FILTER AND SIGNAL PROCESSING DEVICE
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Pub. No.: WO/2019/043748 International Application No.: PCT/JP2017/030678
Publication Date: 07.03.2019 International Filing Date: 28.08.2017
IPC:
H04B 10/61 (2013.01) ,H04J 14/06 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
60
Receivers
61
Coherent receivers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
J
MULTIPLEX COMMUNICATION
14
Optical multiplex systems
06
Polarisation multiplex systems
Applicants:
三菱電機株式会社 MITSUBISHI ELECTRIC CORPORATION [JP/JP]; 東京都千代田区丸の内二丁目7番3号 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310, JP
Inventors:
備海 正嗣 BINKAI, Masashi; JP
松田 恵介 MATSUDA, Keisuke; JP
松本 怜典 MATSUMOTO, Ryosuke; JP
Agent:
田澤 英昭 TAZAWA, Hideaki; JP
濱田 初音 HAMADA, Hatsune; JP
中島 成 NAKASHIMA, Nari; JP
坂元 辰哉 SAKAMOTO, Tatsuya; JP
辻岡 将昭 TSUJIOKA, Masaaki; JP
井上 和真 INOUE, Kazuma; JP
Priority Data:
Title (EN) ADAPTIVE EQUALIZATION FILTER AND SIGNAL PROCESSING DEVICE
(FR) FILTRE D'ÉGALISATION ADAPTATIF ET DISPOSITIF DE TRAITEMENT DE SIGNAL
(JA) 適応等化フィルタ及び信号処理装置
Abstract:
(EN) Provided is an adaptive equalization filter wherein each of a first filter (11) to a fourth filter (14) is a FIR filter having one tap, and each of a fifth filter (15) and a sixth filter (16) is a FIR filter having less than 46 taps. As a result, an adaptive equalization filter with a lower number of total taps than an adaptive equalization filter that uses FIR filters each having 24 taps as the first filter to the fourth filter is obtained.
(FR) L'invention concerne un filtre d'égalisation adaptatif dans lequel chacun d'un premier filtre (11) à un quatrième filtre (14) est un filtre FIR ayant une prise, et chacun d'un cinquième filtre (15) et d'un sixième filtre (16) est un filtre FIR ayant moins de 46 prises. Par conséquent, un filtre d'égalisation adaptatif avec un nombre de prises totales inférieur à un filtre d'égalisation adaptatif qui utilise des filtres FIR ayant chacun 24 prises en tant que premier filtre au quatrième filtre est obtenu.
(JA) 第1のフィルタ(11)~第4のフィルタ(14)のそれぞれが、1つのタップを有するFIRフィルタであり、第5のフィルタ(15)及び第6のフィルタ(16)のそれぞれが、46個未満のタップを有するFIRフィルタであるように構成している。これにより、第1のフィルタ~第4のフィルタとして、24個のタップを有するFIRフィルタをそれぞれ用いる適応等化フィルタよりも、全体のタップ数が少ない適応等化フィルタが得られる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)