CN109217968B - 一种基于相移键控技术的采用cdma技术的近距离无线网络 - Google Patents
一种基于相移键控技术的采用cdma技术的近距离无线网络 Download PDFInfo
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- CN109217968B CN109217968B CN201810940766.6A CN201810940766A CN109217968B CN 109217968 B CN109217968 B CN 109217968B CN 201810940766 A CN201810940766 A CN 201810940766A CN 109217968 B CN109217968 B CN 109217968B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- 230000010363 phase shift Effects 0.000 title claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000001228 spectrum Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001427 coherent effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000007480 spreading Effects 0.000 claims description 8
- 238000005314 correlation function Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005562 fading Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0055—ZCZ [zero correlation zone]
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- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
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- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive loop type
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CN201810940766.6A CN109217968B (zh) | 2018-08-17 | 2018-08-17 | 一种基于相移键控技术的采用cdma技术的近距离无线网络 |
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CN109217968A CN109217968A (zh) | 2019-01-15 |
CN109217968B true CN109217968B (zh) | 2020-04-28 |
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CN110493864B (zh) * | 2019-07-30 | 2020-07-10 | 北京大学 | 一种基于时钟导引同步条件下的准同步码分多址方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1811681A1 (en) * | 2004-10-22 | 2007-07-25 | Suehiro, Naoki | Data block spread type spectrum spread communication method |
CN101632247A (zh) * | 2007-01-26 | 2010-01-20 | 北京清深技术开发中心有限公司 | 一种码分复用的方法与系统 |
CN1753394B (zh) * | 2004-09-21 | 2010-04-28 | 方正通信技术有限公司 | 改善ofdm系统同步性能的解扩频方法 |
CN1783859B (zh) * | 2004-11-26 | 2011-08-10 | 索尼株式会社 | 无线通信装置及无线通信方法 |
CN105554868A (zh) * | 2015-12-04 | 2016-05-04 | 盐城工学院 | 一种基于cdma自组网网络mac准同步协议通信方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101355373B (zh) * | 2007-07-24 | 2013-03-27 | 重庆无线绿洲通信技术有限公司 | 无干扰准同步码分多址通信系统的信号生成方法 |
US10306568B2 (en) * | 2014-04-02 | 2019-05-28 | Lg Electronics Inc. | Method for transceiving signal in wireless communication system and apparatus therefor |
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- 2018-08-17 CN CN201810940766.6A patent/CN109217968B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1753394B (zh) * | 2004-09-21 | 2010-04-28 | 方正通信技术有限公司 | 改善ofdm系统同步性能的解扩频方法 |
EP1811681A1 (en) * | 2004-10-22 | 2007-07-25 | Suehiro, Naoki | Data block spread type spectrum spread communication method |
CN1783859B (zh) * | 2004-11-26 | 2011-08-10 | 索尼株式会社 | 无线通信装置及无线通信方法 |
CN101632247A (zh) * | 2007-01-26 | 2010-01-20 | 北京清深技术开发中心有限公司 | 一种码分复用的方法与系统 |
CN105554868A (zh) * | 2015-12-04 | 2016-05-04 | 盐城工学院 | 一种基于cdma自组网网络mac准同步协议通信方法 |
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