MX9700017A - Sistema y metodo de espectro extendido para red de elementos en fase. - Google Patents

Sistema y metodo de espectro extendido para red de elementos en fase.

Info

Publication number
MX9700017A
MX9700017A MX9700017A MX9700017A MX9700017A MX 9700017 A MX9700017 A MX 9700017A MX 9700017 A MX9700017 A MX 9700017A MX 9700017 A MX9700017 A MX 9700017A MX 9700017 A MX9700017 A MX 9700017A
Authority
MX
Mexico
Prior art keywords
signals
spread
spectrum
magnitude values
magnitude
Prior art date
Application number
MX9700017A
Other languages
English (en)
Inventor
Donald L Schilling
Original Assignee
Interdigital Tecnology Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23015931&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX9700017(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Interdigital Tecnology Corp filed Critical Interdigital Tecnology Corp
Publication of MX9700017A publication Critical patent/MX9700017A/es

Links

Classifications

    • 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
    • H04B7/0891—Space-time diversity
    • H04B7/0894—Space-time diversity using different delays between antennas
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
    • G01S3/42—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal the desired condition being maintained automatically
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/22—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation in accordance with variation of frequency of radiated wave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2682—Time delay steered arrays
    • 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
    • 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
    • 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
    • H04B7/0837—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 pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments
    • 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
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1081—Reduction of multipath noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Noise Elimination (AREA)
  • Radio Transmission System (AREA)
  • Burglar Alarm Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Stereophonic System (AREA)
  • Measurement Of Radiation (AREA)
  • Radio Relay Systems (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

Se describe un sistema de espectro extendido para red de elementos en fase que maximiza la intensidad de la señal de espectro extendido con multitrayectorias. La seccion de RF/IF (21) recibe una pluralidad de señales de espectro extendido. La seccion de RF/IF(22) recibe una pluralidad de versiones en fase de la pluralidad de señales de espectro extendido. Los dispositivos de retardo digital (27,28) retardan las señales de espectro extendido recibidas con respecto a sus versiones en fase por una pluralidad de retardos. Los sumadores (29,30) combinan las señales de espectro extendido retardadas y sus versiones en fase como una pluralidad de señales combinadas. El despropagador (31) despropaga las señales combinadas como una pluralidad de señales despropagadas. El dispositivo de magnitud (32) genera una pluralidad de valores de magnitud a partir de las señales despropagadas. El registrador de desplazamiento (33) almacena una pluralidad de valores de magnitud previos y valores de magnitud presentes previamente y presentemente generados por el dispositivo de magnitud (32). El comparador (34) compara los valores de magnitud previos con los valores de magnitud presentes y emite una pluralidad de señales de comparacion. Los dispositivos de retardo digital (27,28) son sensibles a las señales de comparacion, alargan o acortan la pluralidad de retardos.
MX9700017A 1994-06-28 1995-06-16 Sistema y metodo de espectro extendido para red de elementos en fase. MX9700017A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/266,769 US5659572A (en) 1993-11-22 1994-06-28 Phased array spread spectrum system and method
PCT/US1995/008562 WO1996000991A1 (en) 1994-06-28 1995-06-16 Phased array spread spectrum system and method

Publications (1)

Publication Number Publication Date
MX9700017A true MX9700017A (es) 1997-12-31

Family

ID=23015931

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9700017A MX9700017A (es) 1994-06-28 1995-06-16 Sistema y metodo de espectro extendido para red de elementos en fase.

Country Status (17)

Country Link
US (9) US5659572A (es)
EP (3) EP1093185A3 (es)
JP (1) JP3796721B2 (es)
CN (7) CN1315346C (es)
AT (1) ATE223113T1 (es)
AU (1) AU686858B2 (es)
BR (1) BR9508146A (es)
CA (1) CA2193843C (es)
DE (2) DE19581691T1 (es)
DK (2) DK0767976T3 (es)
ES (1) ES2144383T3 (es)
FI (1) FI965223A (es)
HK (6) HK1055024B (es)
MX (1) MX9700017A (es)
NZ (1) NZ290255A (es)
SE (3) SE521161C2 (es)
WO (1) WO1996000991A1 (es)

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SE9604711L (sv) 1997-02-21
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