CN1236245A - 采用修改的正交代码以减低自相关的数字调制系统 - Google Patents

采用修改的正交代码以减低自相关的数字调制系统 Download PDF

Info

Publication number
CN1236245A
CN1236245A CN99105161A CN99105161A CN1236245A CN 1236245 A CN1236245 A CN 1236245A CN 99105161 A CN99105161 A CN 99105161A CN 99105161 A CN99105161 A CN 99105161A CN 1236245 A CN1236245 A CN 1236245A
Authority
CN
China
Prior art keywords
code
modification
walsh
orthogonal
group
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.)
Pending
Application number
CN99105161A
Other languages
English (en)
Chinese (zh)
Inventor
D·J·理查德·万·尼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/064,188 external-priority patent/US6452958B1/en
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CN1236245A publication Critical patent/CN1236245A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CN99105161A 1998-04-22 1999-04-21 采用修改的正交代码以减低自相关的数字调制系统 Pending CN1236245A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US064,188 1998-04-22
US09/064,188 US6452958B1 (en) 1996-07-30 1998-04-22 Digital modulation system using extended code set

Publications (1)

Publication Number Publication Date
CN1236245A true CN1236245A (zh) 1999-11-24

Family

ID=22054169

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99105161A Pending CN1236245A (zh) 1998-04-22 1999-04-21 采用修改的正交代码以减低自相关的数字调制系统

Country Status (6)

Country Link
JP (2) JP2000032073A (pt)
KR (1) KR19990083302A (pt)
CN (1) CN1236245A (pt)
AU (1) AU2388199A (pt)
BR (1) BR9901362A (pt)
CA (1) CA2261826A1 (pt)

Also Published As

Publication number Publication date
KR19990083302A (ko) 1999-11-25
CA2261826A1 (en) 1999-10-22
AU2388199A (en) 1999-11-04
BR9901362A (pt) 2000-01-18
JP2005057730A (ja) 2005-03-03
JP2000032073A (ja) 2000-01-28
JP4272593B2 (ja) 2009-06-03

Similar Documents

Publication Publication Date Title
US6404732B1 (en) Digital modulation system using modified orthogonal codes to reduce autocorrelation
US8514690B2 (en) M-ary orthogonal keying system
US6473449B1 (en) High-data-rate wireless local-area network
US5809060A (en) High-data-rate wireless local-area network
CN1097358C (zh) 通信系统中利用相干解调和判决引导信道估计的方法和设备
EP1311095B1 (en) Method for spread-spectrum digital communication by golay complementary sequence modulation
US6452958B1 (en) Digital modulation system using extended code set
JP2526510B2 (ja) 無線デ―タ通信装置
CN1846357A (zh) 并行扩频通信系统和方法
EP1118193B1 (en) Encoding/decoding additional symbols in a communications system
WO2001020800A1 (en) Method and apparatus for demodulating trellis coded direct sequence spread spectrum communication signals
WO2003063379A1 (en) A system and method employing concatenated spreading sequences to provide data modulated spread signals
CN1166074C (zh) 1位相关器rake接收机
CN1236245A (zh) 采用修改的正交代码以减低自相关的数字调制系统
CN114465856A (zh) 一种基于cdma体制的信号多进制调制方法、解调方法及设备
US6678338B1 (en) Receiver module and receiver formed from several cascaded modules
Guo et al. Transmission efficiency of code shift keying
CN1243360A (zh) 使用扩展代码组的数字调制系统
WO2012037638A1 (en) A tri-phase code generator in a cdma wireless communication system
AU684905C (en) A high-data-rate wireless local-area network

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication