IT1284306B1 - Convertitore in salita/modulatore digiatale di accessi multipli e relativo procedimento - Google Patents
Convertitore in salita/modulatore digiatale di accessi multipli e relativo procedimentoInfo
- Publication number
- IT1284306B1 IT1284306B1 IT96RM000188A ITRM960188A IT1284306B1 IT 1284306 B1 IT1284306 B1 IT 1284306B1 IT 96RM000188 A IT96RM000188 A IT 96RM000188A IT RM960188 A ITRM960188 A IT RM960188A IT 1284306 B1 IT1284306 B1 IT 1284306B1
- Authority
- IT
- Italy
- Prior art keywords
- digiatal
- multiple access
- related procedure
- access modulator
- upward converter
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Amplitude Modulation (AREA)
- Communication Control (AREA)
- Transceivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41538795A | 1995-04-03 | 1995-04-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
ITRM960188A0 ITRM960188A0 (zh) | 1996-03-25 |
ITRM960188A1 ITRM960188A1 (it) | 1997-09-25 |
IT1284306B1 true IT1284306B1 (it) | 1998-05-18 |
Family
ID=23645488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT96RM000188A IT1284306B1 (it) | 1995-04-03 | 1996-03-25 | Convertitore in salita/modulatore digiatale di accessi multipli e relativo procedimento |
Country Status (17)
Country | Link |
---|---|
JP (1) | JPH10501674A (zh) |
KR (1) | KR100210633B1 (zh) |
CN (1) | CN1064794C (zh) |
AU (1) | AU695320B2 (zh) |
BR (1) | BR9605951A (zh) |
CA (1) | CA2191098C (zh) |
DE (1) | DE19680328T1 (zh) |
FI (1) | FI964824A (zh) |
FR (1) | FR2732535B1 (zh) |
GB (1) | GB2304262A (zh) |
IL (1) | IL117369A0 (zh) |
IT (1) | IT1284306B1 (zh) |
MX (1) | MX9606016A (zh) |
PL (1) | PL180753B1 (zh) |
SE (1) | SE519826C2 (zh) |
TW (1) | TW287335B (zh) |
WO (1) | WO1996031942A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6034969A (en) * | 1998-05-26 | 2000-03-07 | Motorola, Inc. | Method and system for cross frame transmit combining of transmit signals |
JP5414484B2 (ja) * | 2009-12-01 | 2014-02-12 | 三菱電機株式会社 | フーリエ変換回路、受信装置およびフーリエ変換方法 |
US8174441B2 (en) * | 2010-06-01 | 2012-05-08 | Mediatek Inc. | Configurable calculating circuit and receiver having a plurality of configurable calculating circuits |
CN102147473B (zh) * | 2010-12-17 | 2012-09-26 | 航天恒星科技有限公司 | 一种同频多系统卫星导航信号生成系统 |
CN110995334B (zh) * | 2019-12-02 | 2022-04-19 | 西安航天天绘数据技术有限公司 | 一种多通道并行处理的天基跳频数据链系统 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4462001A (en) * | 1982-02-22 | 1984-07-24 | Canadian Patents & Development Limited | Baseband linearizer for wideband, high power, nonlinear amplifiers |
GB2135844B (en) * | 1983-02-21 | 1986-08-28 | Nippon Telegraph & Telephone | Oscillator with variable frequency and phase |
ATE87777T1 (de) * | 1985-04-04 | 1993-04-15 | Motorola Inc | Digitale zero-mf selektive stufe. |
SE463390B (sv) * | 1989-03-13 | 1990-11-12 | Ericsson Telefon Ab L M | Vaagformsgenerator |
US5008900A (en) * | 1989-08-14 | 1991-04-16 | International Mobile Machines Corporation | Subscriber unit for wireless digital subscriber communication system |
US5111163A (en) * | 1991-05-06 | 1992-05-05 | Hughes Aircraft Company | Digital FM modulator |
US5351016A (en) * | 1993-05-28 | 1994-09-27 | Ericsson Ge Mobile Communications Inc. | Adaptively self-correcting modulation system and method |
US5412351A (en) * | 1993-10-07 | 1995-05-02 | Nystrom; Christian | Quadrature local oscillator network |
US5386202A (en) * | 1993-11-03 | 1995-01-31 | Sicom, Inc. | Data communication modulation with managed intersymbol interference |
US5412352A (en) * | 1994-04-18 | 1995-05-02 | Stanford Telecommunications, Inc. | Modulator having direct digital synthesis for broadband RF transmission |
-
1996
- 1996-02-29 AU AU53566/96A patent/AU695320B2/en not_active Ceased
- 1996-02-29 BR BR9605951A patent/BR9605951A/pt unknown
- 1996-02-29 MX MX9606016A patent/MX9606016A/es not_active IP Right Cessation
- 1996-02-29 DE DE19680328T patent/DE19680328T1/de not_active Ceased
- 1996-02-29 KR KR1019960706895A patent/KR100210633B1/ko not_active IP Right Cessation
- 1996-02-29 CN CN96190283A patent/CN1064794C/zh not_active Expired - Fee Related
- 1996-02-29 GB GB9624183A patent/GB2304262A/en not_active Withdrawn
- 1996-02-29 WO PCT/US1996/002746 patent/WO1996031942A1/en active Application Filing
- 1996-02-29 JP JP8530282A patent/JPH10501674A/ja not_active Ceased
- 1996-02-29 CA CA002191098A patent/CA2191098C/en not_active Expired - Fee Related
- 1996-02-29 PL PL96317897A patent/PL180753B1/pl unknown
- 1996-03-05 IL IL11736996A patent/IL117369A0/xx unknown
- 1996-03-06 TW TW085102739A patent/TW287335B/zh active
- 1996-03-25 IT IT96RM000188A patent/IT1284306B1/it active IP Right Grant
- 1996-03-27 FR FR9603788A patent/FR2732535B1/fr not_active Expired - Fee Related
- 1996-12-02 FI FI964824A patent/FI964824A/fi unknown
- 1996-12-02 SE SE9604433A patent/SE519826C2/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1996031942A1 (en) | 1996-10-10 |
TW287335B (zh) | 1996-10-01 |
ITRM960188A1 (it) | 1997-09-25 |
SE519826C2 (sv) | 2003-04-15 |
BR9605951A (pt) | 1997-08-19 |
ITRM960188A0 (zh) | 1996-03-25 |
GB2304262A (en) | 1997-03-12 |
CA2191098A1 (en) | 1996-10-10 |
IL117369A0 (en) | 1996-07-23 |
CN1149941A (zh) | 1997-05-14 |
FI964824A0 (fi) | 1996-12-02 |
KR100210633B1 (ko) | 1999-07-15 |
AU5356696A (en) | 1996-10-23 |
FR2732535A1 (fr) | 1996-10-04 |
GB9624183D0 (en) | 1997-01-08 |
JPH10501674A (ja) | 1998-02-10 |
MX9606016A (es) | 1997-12-31 |
DE19680328T1 (de) | 1997-07-31 |
SE9604433L (sv) | 1996-12-02 |
AU695320B2 (en) | 1998-08-13 |
SE9604433D0 (sv) | 1996-12-02 |
CA2191098C (en) | 2000-05-02 |
KR970703644A (ko) | 1997-07-03 |
FR2732535B1 (fr) | 2002-11-29 |
CN1064794C (zh) | 2001-04-18 |
PL180753B1 (pl) | 2001-04-30 |
PL317897A1 (en) | 1997-04-28 |
FI964824A (fi) | 1996-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19990331 |