JPH04185130A - Diversity receiver for spread spectrum communication - Google Patents

Diversity receiver for spread spectrum communication

Info

Publication number
JPH04185130A
JPH04185130A JP2315556A JP31555690A JPH04185130A JP H04185130 A JPH04185130 A JP H04185130A JP 2315556 A JP2315556 A JP 2315556A JP 31555690 A JP31555690 A JP 31555690A JP H04185130 A JPH04185130 A JP H04185130A
Authority
JP
Japan
Prior art keywords
antenna
signal
correlation
ss
reception
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
JP2315556A
Inventor
Takeshi Hashimoto
Original Assignee
Clarion Co Ltd
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
Application filed by Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP2315556A priority Critical patent/JPH04185130A/en
Publication of JPH04185130A publication Critical patent/JPH04185130A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To reduce the effect of a multi-path and to attain stable transmission reception by providing a 2nd antenna parted spatially with respect to a 1st antenna and taking the signal of the 2nd antenna non-correlation from the signal of the 1st antenna.
CONSTITUTION: The receiver consists of antennas 13, 14, filters 15, 16, amplifiers 17, 18, a delay device 19 and a synthesizer 20 or the like. Then the distance between the antennas 13, 14 is spatially parted by λ/3 (λ is a wavelength of a carrier) or over so that an SS reception signal S5(t) from the antenna 13 and an SS reception signal S6(t) from the antenna 14 are almost in non- correlation. Thus, the SS signal received by the antenna 14 reaches an independent reception signal level. For example, a phase difference of a carrier in the correlation spike is 0° (synchronization), the synthesized correlation spike is not almost suppressed. Thus, the effect of the multi-path is reduced and stable transmission reception is attained.
COPYRIGHT: (C)1992,JPO&Japio
JP2315556A 1990-11-20 1990-11-20 Diversity receiver for spread spectrum communication Pending JPH04185130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2315556A JPH04185130A (en) 1990-11-20 1990-11-20 Diversity receiver for spread spectrum communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2315556A JPH04185130A (en) 1990-11-20 1990-11-20 Diversity receiver for spread spectrum communication

Publications (1)

Publication Number Publication Date
JPH04185130A true JPH04185130A (en) 1992-07-02

Family

ID=18066769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2315556A Pending JPH04185130A (en) 1990-11-20 1990-11-20 Diversity receiver for spread spectrum communication

Country Status (1)

Country Link
JP (1) JPH04185130A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0667686A2 (en) 1993-12-16 1995-08-16 Nec Corporation DS/CDMA diveristy receiver with despreading filters
JPH08307318A (en) * 1995-04-27 1996-11-22 Sumitomo Electric Ind Ltd Spread spectrum communication equipment
EP0773638A1 (en) * 1995-11-13 1997-05-14 AT&T Corp. Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers
JPH09181699A (en) * 1995-12-22 1997-07-11 Nec Corp Mobile repeater
US5687162A (en) * 1994-08-11 1997-11-11 Nec Corporation DS/CDMA receiver having an interference cancelling function capable of asssuring a desired reception quality in a narrow-band DS/CDMA
GB2340354A (en) * 1998-05-21 2000-02-16 Matsushita Electric Ind Co Ltd CDMA receiver where the received signals are phase adjusted/time delayed and then summed before despreading
US6229840B1 (en) 1997-03-04 2001-05-08 Nec Corporation Diversity circuit
WO2005022777A1 (en) 2003-09-03 2005-03-10 Koninklijke Philips Electronics N.V. Virtual-antenna receiver
US7145893B2 (en) 1997-10-31 2006-12-05 Interdigital Technology Corporation Communication station having an improved antenna system
FR2889398A1 (en) * 2005-07-27 2007-02-02 Archos Sa Portable digital terrestrial television receiving apparatus, has reception units, to receive low power digital signal, with UHF/VHF antennas to receive signal, where antennas are carried by and connected to apparatus by protecting flap
FR2889399A1 (en) * 2005-07-27 2007-02-02 Archos Sa Portable ground terminal digital television device comprising a device for receiving a low power digital signal
US7362793B2 (en) 1993-11-22 2008-04-22 Interdigital Technology Corporation Base station having a set of phased array antennas
US7697643B2 (en) 1995-01-04 2010-04-13 Interdigital Technology Corporation Setting a transmission power level for a mobile unit
US7761077B2 (en) 2003-09-03 2010-07-20 Koninklijke Philips Electronics N.V. Diversity receiver
US8588350B2 (en) 2002-12-09 2013-11-19 Koninklijke Philips N.V. Diversity receiver having cross coupled channel parameter estimation

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8462876B2 (en) 1993-11-22 2013-06-11 Interdigital Technology Corporation Base station having a set of phased array antennas
US7362793B2 (en) 1993-11-22 2008-04-22 Interdigital Technology Corporation Base station having a set of phased array antennas
US7580475B2 (en) 1993-11-22 2009-08-25 Interdigital Technology Corporation Base station having a set of phased array antennas
EP0667686A2 (en) 1993-12-16 1995-08-16 Nec Corporation DS/CDMA diveristy receiver with despreading filters
US5598428A (en) * 1993-12-16 1997-01-28 Nec Corporation DS/CDMA diversity receiver with despreading filters using combiner wherein first and second despreading filters are delayed with respect to each other by a period of half the chip rate
US5687162A (en) * 1994-08-11 1997-11-11 Nec Corporation DS/CDMA receiver having an interference cancelling function capable of asssuring a desired reception quality in a narrow-band DS/CDMA
US8340228B2 (en) 1995-01-04 2012-12-25 Intel Corporation Setting a transmission power level for a mobile unit
US7961822B2 (en) 1995-01-04 2011-06-14 Interdigital Technology Corporation Setting a transmission power level for a mobile unit
US7697643B2 (en) 1995-01-04 2010-04-13 Interdigital Technology Corporation Setting a transmission power level for a mobile unit
US8824523B2 (en) 1995-01-04 2014-09-02 Intel Corporation Setting a transmission power level for a mobile unit
JPH08307318A (en) * 1995-04-27 1996-11-22 Sumitomo Electric Ind Ltd Spread spectrum communication equipment
EP0773638A1 (en) * 1995-11-13 1997-05-14 AT&T Corp. Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers
JPH09181699A (en) * 1995-12-22 1997-07-11 Nec Corp Mobile repeater
US6229840B1 (en) 1997-03-04 2001-05-08 Nec Corporation Diversity circuit
US7145893B2 (en) 1997-10-31 2006-12-05 Interdigital Technology Corporation Communication station having an improved antenna system
GB2340354A (en) * 1998-05-21 2000-02-16 Matsushita Electric Ind Co Ltd CDMA receiver where the received signals are phase adjusted/time delayed and then summed before despreading
US8588350B2 (en) 2002-12-09 2013-11-19 Koninklijke Philips N.V. Diversity receiver having cross coupled channel parameter estimation
US7761077B2 (en) 2003-09-03 2010-07-20 Koninklijke Philips Electronics N.V. Diversity receiver
WO2005022777A1 (en) 2003-09-03 2005-03-10 Koninklijke Philips Electronics N.V. Virtual-antenna receiver
US7573961B2 (en) 2003-09-03 2009-08-11 Koninklijke Philips Electronics N.V. Virtual-antenna receiver
FR2889398A1 (en) * 2005-07-27 2007-02-02 Archos Sa Portable digital terrestrial television receiving apparatus, has reception units, to receive low power digital signal, with UHF/VHF antennas to receive signal, where antennas are carried by and connected to apparatus by protecting flap
FR2889399A1 (en) * 2005-07-27 2007-02-02 Archos Sa Portable ground terminal digital television device comprising a device for receiving a low power digital signal

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