JP2006511102A - 多シンボル遅延検波のアルゴリズム - Google Patents
多シンボル遅延検波のアルゴリズム Download PDFInfo
- Publication number
- JP2006511102A JP2006511102A JP2004546798A JP2004546798A JP2006511102A JP 2006511102 A JP2006511102 A JP 2006511102A JP 2004546798 A JP2004546798 A JP 2004546798A JP 2004546798 A JP2004546798 A JP 2004546798A JP 2006511102 A JP2006511102 A JP 2006511102A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- phase delay
- phases
- sequence
- delay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 230000003111 delayed effect Effects 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000018199 S phase Effects 0.000 claims abstract description 4
- 238000000819 phase cycle Methods 0.000 claims description 15
- 230000001934 delay Effects 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims description 4
- 102100026758 Serine/threonine-protein kinase 16 Human genes 0.000 claims 1
- 101710184778 Serine/threonine-protein kinase 16 Proteins 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000010363 phase shift Effects 0.000 description 5
- 238000007476 Maximum Likelihood Methods 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 108010076504 Protein Sorting Signals Proteins 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2331—Demodulator circuits; Receiver circuits using non-coherent demodulation wherein the received signal is demodulated using one or more delayed versions of itself
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03184—Details concerning the metric
- H04L25/03197—Details concerning the metric methods of calculation involving metrics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Δφkは、グレー(Gray)のマッピング方式のように、単位円を一周する集合Ω={2πm/M,m=0,1,...,M−1}に均一に分散したM個の値の1つをとる、k番目の送信間隔に対応する送信情報の位相遅延である。例えば、QPSK(直交位相シフトキーイング)の場合は、M=4で、1〜Nの各kについて、Δφk=0,π/2,π、または3π/2になる。
Claims (7)
- MPSK通信データの多シンボル遅延検波の位相評価の方法であって、
a)各連続したシンボルの対がM個(但し、M>2)の位相の中からの位相遅延を有する、受信されたN個の連続したシンボルr1〜rNの集合を観測するステップと、
b)集合(2πk/M,k=0,1,...,M−1)から選択された可能な位相遅延のシーケンスを表す、選択されたN−1個の要素のシーケンスに基づいて、シンボルr1〜rNの集合を評価するステップと、
c)前記シンボルの集合を評価するために、1<S<Mである、i=1〜Sについて形式(P2i,P3i,...,PNi)のSN−1個の位相シーケンスを選択するステップと
を備えることを特徴とする方法。 - 前記ステップ(b)の評価はさらに、最初のシンボルr1と他の各シンボルrk(k=2〜N)との位相遅延を推定するステップを含み、前記ステップ(c)の選択はさらに、結果がS個の位相遅延のN−1個の集合となる、式
d)式
を備えることを特徴とする請求項1に記載の方法。 - e)前記ステップ(d)の前記最適な位相遅延シーケンスから、送信情報の位相遅延シーケンスの推定値を決定するステップと、
f)グレーのデマッピングにより位相情報ビットを決定するステップと
をさらに備えることを特徴とする請求項2に記載の方法。 - S=2であり、2つの最も近い位相が求められることを特徴とする請求項2に記載の方法。
- M=4、N=4、かつS=2であり、前記位相βk1〜βksは、集合(0,π/2,π,3π/2)から選択されて、SN−1個の位相の集合:
(P21,P31,P41)
(P21,P31,P42)
(P21,P32,P41)
(P21,P32,P42)
(P22,P31,P41)
(P22,P31,P42)
(P22,P32,P41)
(P22,P32,P42)
を生成することを特徴とする請求項2に記載の方法。 - 受信されたN個の連続するrkシンボル(r1〜rN)について、通信受信機で多シンボル遅延検波を行うシステムであって、連続したシンボルの各対は、M個の位相の中からの位相遅延を有し、ここでM>2であり、前記システムは、
それぞれが集合(βk=2πk/M,k=0,1,...,M−1)からS個の候補位相の集合を生成するN−1個の並列選択回路であって、ここで1<S<Mであり、該各選択回路は、
前記連続したシンボルの評価を可能にする遅延素子と、
並列の積(rk)(e−jβk)を生成するM個の乗算器と、
式
積(rk+1)(e−jβ’k)を生成するS個の乗算器であって、ここで(i=1〜N−1)であり、β’kは、S個の選択された位相候補の1つを表す、乗算器と、
N−1個の選択回路の積の出力を加算する加算器と、
前記N−1個の並列選択回路からのSN−1個の位相シーケンスを評価し、最大の積値を生成する位相シーケンスを選択する決定素子と
を備えることを特徴とするシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/279,238 US6842496B2 (en) | 2002-10-24 | 2002-10-24 | Algorithm for multiple-symbol differential detection |
PCT/US2003/031787 WO2004039025A1 (en) | 2002-10-24 | 2003-10-07 | Algorithm for multiple-symbol differential detection |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006511102A true JP2006511102A (ja) | 2006-03-30 |
JP4057012B2 JP4057012B2 (ja) | 2008-03-05 |
Family
ID=32106656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004546798A Expired - Fee Related JP4057012B2 (ja) | 2002-10-24 | 2003-10-07 | 多シンボル遅延検波のアルゴリズム |
Country Status (11)
Country | Link |
---|---|
US (3) | US6842496B2 (ja) |
EP (1) | EP1554853A4 (ja) |
JP (1) | JP4057012B2 (ja) |
KR (4) | KR100755252B1 (ja) |
CN (1) | CN1706164A (ja) |
AU (1) | AU2003279178A1 (ja) |
CA (1) | CA2503440A1 (ja) |
MX (1) | MXPA05004245A (ja) |
NO (1) | NO20052293D0 (ja) |
TW (4) | TWI249311B (ja) |
WO (1) | WO2004039025A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6842496B2 (en) * | 2002-10-24 | 2005-01-11 | Interdigital Technology Corporation | Algorithm for multiple-symbol differential detection |
KR100759801B1 (ko) * | 2005-12-02 | 2007-09-20 | 한국전자통신연구원 | M-PSK(M-ary Phase ShiftKeying)시스템의 심볼 판별 장치 및 방법 |
KR100949532B1 (ko) * | 2008-09-29 | 2010-03-25 | 연세대학교 산학협력단 | 전송 프레임의 심볼 오류를 검출 보상하는 다중 심볼 차등 복호화 장치와 그 방법, 상기 다중 심볼 차등 복호화 장치를 구비하는 이동 방송 수신기, 및 상기 이동 방송 수신기를 구비하는 이동 방송 시스템 |
CN102859890B (zh) * | 2010-01-11 | 2015-08-05 | 三星电子株式会社 | 超宽带通信装置和方法 |
US20130170842A1 (en) * | 2012-01-04 | 2013-07-04 | Toshiaki Koike-Akino | Method and System for Equalization and Decoding Received Signals Based on High-Order Statistics in Optical Communication Networks |
US9426082B2 (en) * | 2014-01-03 | 2016-08-23 | Qualcomm Incorporated | Low-voltage differential signaling or 2-wire differential link with symbol transition clocking |
KR102460071B1 (ko) * | 2017-12-21 | 2022-10-28 | 삼성전자주식회사 | 통신모뎀 전단의 통신신호 식별 장치 및 방법 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US568483A (en) * | 1896-09-29 | Puzzle | ||
JP3212732B2 (ja) | 1993-02-10 | 2001-09-25 | 三菱電機株式会社 | 受信機およびこれを備えた通信システム |
JPH06311195A (ja) | 1993-04-20 | 1994-11-04 | N T T Idou Tsuushinmou Kk | Apsk変調信号復調装置 |
WO1994029990A1 (fr) * | 1993-06-04 | 1994-12-22 | Ntt Mobile Communications Network Inc. | Procede de detection de retard par estimation de probabilite maximum et detecteur de retard mettant en ×uvre ce procede |
EP0684706B1 (en) * | 1993-11-05 | 2003-02-05 | Ntt Mobile Communications Network Inc. | Replica producing adaptive demodulating method and demodulator using the same |
US5644592A (en) * | 1995-04-24 | 1997-07-01 | California Institute Of Technology | Parallel interference cancellation for CDMA applications |
US5790588A (en) * | 1995-06-07 | 1998-08-04 | Ntt Mobile Communications Network, Inc. | Spread spectrum transmitter and receiver employing composite spreading codes |
KR100754810B1 (ko) | 1996-11-05 | 2007-09-03 | 월드스페이스 인코퍼레이티드 | 디지털위성 직접 방송시스템 |
JP2988398B2 (ja) * | 1996-11-27 | 1999-12-13 | 日本電気株式会社 | ユニークワード遅延検波方式および復調装置 |
US5786725A (en) * | 1996-12-27 | 1998-07-28 | Lucent Technologies Inc. | Reduced complexity maximum likelihood multiple symbol differential detector |
TW444471B (en) | 1998-10-12 | 2001-07-01 | Macronix Int Co Ltd | Multi-phase DPSK communication receiver providing speed of 1/T symbol per second |
JP3620700B2 (ja) | 1999-03-15 | 2005-02-16 | 日本ビクター株式会社 | 光記録媒体及び光記録媒体再生装置 |
JP3776283B2 (ja) | 2000-03-17 | 2006-05-17 | 三菱電機株式会社 | 復調器、受信機、および通信システム |
TW457376B (en) | 2000-08-28 | 2001-10-01 | Cheng Jou | Linear polarized phase shift keying optical fiber communication system and method |
US6922438B1 (en) * | 2000-12-15 | 2005-07-26 | Conexant Systems, Inc. | System for MPSK symbol hypothesis testing |
US6842496B2 (en) * | 2002-10-24 | 2005-01-11 | Interdigital Technology Corporation | Algorithm for multiple-symbol differential detection |
-
2002
- 2002-10-24 US US10/279,238 patent/US6842496B2/en not_active Expired - Fee Related
-
2003
- 2003-10-07 WO PCT/US2003/031787 patent/WO2004039025A1/en active Application Filing
- 2003-10-07 MX MXPA05004245A patent/MXPA05004245A/es active IP Right Grant
- 2003-10-07 KR KR1020057007165A patent/KR100755252B1/ko not_active IP Right Cessation
- 2003-10-07 AU AU2003279178A patent/AU2003279178A1/en not_active Abandoned
- 2003-10-07 TW TW092127879A patent/TWI249311B/zh not_active IP Right Cessation
- 2003-10-07 EP EP03770679A patent/EP1554853A4/en not_active Withdrawn
- 2003-10-07 KR KR1020087024481A patent/KR100914012B1/ko not_active IP Right Cessation
- 2003-10-07 TW TW093116956A patent/TWI288544B/zh not_active IP Right Cessation
- 2003-10-07 TW TW098102146A patent/TW200950429A/zh unknown
- 2003-10-07 TW TW095137448A patent/TW200729865A/zh unknown
- 2003-10-07 KR KR1020057017383A patent/KR100902624B1/ko not_active IP Right Cessation
- 2003-10-07 KR KR1020097002130A patent/KR20090021398A/ko not_active IP Right Cessation
- 2003-10-07 JP JP2004546798A patent/JP4057012B2/ja not_active Expired - Fee Related
- 2003-10-07 CA CA002503440A patent/CA2503440A1/en not_active Abandoned
- 2003-10-07 CN CNA2003801018483A patent/CN1706164A/zh active Pending
-
2004
- 2004-12-17 US US11/015,220 patent/US7440519B2/en not_active Expired - Fee Related
-
2005
- 2005-05-10 NO NO20052293A patent/NO20052293D0/no not_active Application Discontinuation
-
2008
- 2008-10-21 US US12/288,630 patent/US7706482B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100755252B1 (ko) | 2007-09-05 |
US20090060098A1 (en) | 2009-03-05 |
TWI288544B (en) | 2007-10-11 |
KR100914012B1 (ko) | 2009-08-28 |
JP4057012B2 (ja) | 2008-03-05 |
MXPA05004245A (es) | 2005-07-27 |
TWI249311B (en) | 2006-02-11 |
KR100902624B1 (ko) | 2009-06-15 |
US20040081258A1 (en) | 2004-04-29 |
NO20052293L (no) | 2005-05-10 |
US20050105652A1 (en) | 2005-05-19 |
CN1706164A (zh) | 2005-12-07 |
TW200408245A (en) | 2004-05-16 |
KR20050096987A (ko) | 2005-10-06 |
US6842496B2 (en) | 2005-01-11 |
NO20052293D0 (no) | 2005-05-10 |
TW200950429A (en) | 2009-12-01 |
US7706482B2 (en) | 2010-04-27 |
WO2004039025A1 (en) | 2004-05-06 |
CA2503440A1 (en) | 2004-05-06 |
US7440519B2 (en) | 2008-10-21 |
EP1554853A4 (en) | 2010-05-05 |
AU2003279178A1 (en) | 2004-05-13 |
KR20080098552A (ko) | 2008-11-10 |
TW200515750A (en) | 2005-05-01 |
TW200729865A (en) | 2007-08-01 |
KR20090021398A (ko) | 2009-03-03 |
EP1554853A1 (en) | 2005-07-20 |
KR20050105165A (ko) | 2005-11-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1212872B1 (fr) | Recepteur a multiplexage par repartition en frequences orthogonales avec estimation iterative de canal et procede correspondant | |
Athaudage et al. | Delay-spread estimation using cyclic-prefix in wireless OFDM systems | |
US7706482B2 (en) | Algorithm for multiple-symbol differential detection | |
NO163120B (no) | Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon. | |
KR101828790B1 (ko) | 주파수 편이 변조 신호의 수신 방법 및 장치 | |
JP3164309B2 (ja) | 最尤復号同期検波方法 | |
WO1999033235A1 (en) | Computationally efficient sequence estimation | |
KR100626103B1 (ko) | 디지털 전송 시스템용 수신기 | |
JP3905541B2 (ja) | 遅延プロファイル推定装置及び相関器 | |
US6961391B2 (en) | Signal processor used for symbol recovery and methods therein | |
CN114745246B (zh) | 基于正交空间调制的正交时频空间调制系统的工作方法 | |
Li | A new reduced-complexity algorithm for multiple-symbol differential detection | |
Tibenderana et al. | Low-complexity high-performance GFSK receiver with carrier frequency offset correction | |
KR100564905B1 (ko) | 기준 심벌이 삽입된 mpsk 버스트의 최대우도 검출 | |
CN114900410B (zh) | 一种低运算量cpfsk信号多符号检测算法 | |
JP2600970B2 (ja) | ダイバーシティ受信装置 | |
Bochkov et al. | Demodulation algorithms for the OFDM signals in the time-and frequency-scattering channels | |
Iwanami et al. | MLD-based MFSK Demodulation on MIMO Frequency Selective Fading Channel | |
Nie et al. | Multiple-symbol differential detection of double differential MPSK by using the viterbi algorithm | |
Vandaele et al. | An adaptive blind multi-user detection algorithm for mobile radio communication | |
Al-Jalili et al. | Experimental study of a symbol timing synchronisation algorithm implemented in the frequency domain | |
KR101481024B1 (ko) | 다중 안테나 통신시스템에서 로그 우도 율 생성 장치 및방법 | |
Nguyen-Thi et al. | Architecture of WLAN channel estimators |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20071107 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20071120 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20071212 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101221 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101221 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111221 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111221 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121221 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121221 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131221 Year of fee payment: 6 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |