WO2015073905A3 - Backscatter estimation using progressive self interference cancellation - Google Patents

Backscatter estimation using progressive self interference cancellation Download PDF

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Publication number
WO2015073905A3
WO2015073905A3 PCT/US2014/065814 US2014065814W WO2015073905A3 WO 2015073905 A3 WO2015073905 A3 WO 2015073905A3 US 2014065814 W US2014065814 W US 2014065814W WO 2015073905 A3 WO2015073905 A3 WO 2015073905A3
Authority
WO
WIPO (PCT)
Prior art keywords
backscatter
interference cancellation
self interference
composite signal
progressive self
Prior art date
Application number
PCT/US2014/065814
Other languages
French (fr)
Other versions
WO2015073905A2 (en
Inventor
Dinesh BHARADIA
Kiran Joshi
Sachin Katti
Original Assignee
The Board Of Trustees Of The Leland Stanford Junior University
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 The Board Of Trustees Of The Leland Stanford Junior University filed Critical The Board Of Trustees Of The Leland Stanford Junior University
Priority to US15/033,889 priority Critical patent/US11163050B2/en
Publication of WO2015073905A2 publication Critical patent/WO2015073905A2/en
Publication of WO2015073905A3 publication Critical patent/WO2015073905A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/003—Bistatic radar systems; Multistatic radar systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/35—Details of non-pulse systems
    • G01S7/352—Receivers
    • G01S7/354—Extracting wanted echo-signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Techniques for estimating one or more backscatter signals reflected from one or more objects are disclosed. In one example, a backscatter sensor includes, in part, a receiver for receiving a composite signal comprising one or more reflections of a transmitted signal, each reflection being reflected by one of a plurality of objects; and a processor configured to estimate at least a first backscatter component of the composite signal using a progressive interference cancellation technique. The first backscatter component of the composite signal corresponds to a reflection of the transmitted signal from a first object. In one embodiment, the backscatter sensor includes multiple receivers and/or one or more transmitters.
PCT/US2014/065814 2013-08-09 2014-11-14 Backscatter estimation using progressive self interference cancellation WO2015073905A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/033,889 US11163050B2 (en) 2013-08-09 2014-11-14 Backscatter estimation using progressive self interference cancellation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361904428P 2013-11-14 2013-11-14
US61/904,428 2013-11-14

Publications (2)

Publication Number Publication Date
WO2015073905A2 WO2015073905A2 (en) 2015-05-21
WO2015073905A3 true WO2015073905A3 (en) 2015-11-12

Family

ID=53058273

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/065814 WO2015073905A2 (en) 2013-08-09 2014-11-14 Backscatter estimation using progressive self interference cancellation

Country Status (1)

Country Link
WO (1) WO2015073905A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10230419B2 (en) 2011-02-03 2019-03-12 The Board Of Trustees Of The Leland Stanford Junior University Adaptive techniques for full duplex communications
US10284356B2 (en) 2011-02-03 2019-05-07 The Board Of Trustees Of The Leland Stanford Junior University Self-interference cancellation
US10243719B2 (en) 2011-11-09 2019-03-26 The Board Of Trustees Of The Leland Stanford Junior University Self-interference cancellation for MIMO radios
US9325432B2 (en) 2012-02-08 2016-04-26 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for full-duplex signal shaping
US11163050B2 (en) 2013-08-09 2021-11-02 The Board Of Trustees Of The Leland Stanford Junior University Backscatter estimation using progressive self interference cancellation
WO2015168700A1 (en) 2014-05-02 2015-11-05 The Board Of Trustees Of The Leland Stanford Junior University Method and apparatus for tracing motion using radio frequency signals
US10338205B2 (en) 2016-08-12 2019-07-02 The Board Of Trustees Of The Leland Stanford Junior University Backscatter communication among commodity WiFi radios
KR20190075093A (en) 2016-10-25 2019-06-28 더 보드 어브 트러스티스 어브 더 리랜드 스탠포드 주니어 유니버시티 ISM band signal around back scattering
CN109150253B (en) * 2018-08-07 2020-07-24 浙江大学 Information symbol detection method of environment backscattering system based on multiple antennas

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411250B1 (en) * 1997-09-01 2002-06-25 Cambridge Consultants Limited Electromagnetic sensor system
US20080131133A1 (en) * 2006-05-17 2008-06-05 Blunt Shannon D Low sinr backscatter communications system and method
US20100226416A1 (en) * 2009-03-05 2010-09-09 Telefonaktiebolaget Lm Ericsson (Publ) Compensating Pre-Filter for an OFDM Transmitter
US20110013684A1 (en) * 2009-07-14 2011-01-20 Nokia Corporation Channel estimates in a SIC receiver for a multi-transmitter array transmission scheme
US20110243202A1 (en) * 2010-04-01 2011-10-06 Ismail Lakkis Cancellation System for Millimeter-Wave Radar
US8331477B2 (en) * 2009-07-16 2012-12-11 Industrial Technology Research Institute Progressive parallel interference canceller and method and receiver thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411250B1 (en) * 1997-09-01 2002-06-25 Cambridge Consultants Limited Electromagnetic sensor system
US20080131133A1 (en) * 2006-05-17 2008-06-05 Blunt Shannon D Low sinr backscatter communications system and method
US20100226416A1 (en) * 2009-03-05 2010-09-09 Telefonaktiebolaget Lm Ericsson (Publ) Compensating Pre-Filter for an OFDM Transmitter
US20100226448A1 (en) * 2009-03-05 2010-09-09 Paul Wilkinson Dent Channel extrapolation from one frequency and time to another
US20110013684A1 (en) * 2009-07-14 2011-01-20 Nokia Corporation Channel estimates in a SIC receiver for a multi-transmitter array transmission scheme
US8331477B2 (en) * 2009-07-16 2012-12-11 Industrial Technology Research Institute Progressive parallel interference canceller and method and receiver thereof
US20110243202A1 (en) * 2010-04-01 2011-10-06 Ismail Lakkis Cancellation System for Millimeter-Wave Radar

Also Published As

Publication number Publication date
WO2015073905A2 (en) 2015-05-21

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