IT1297100B1 - Circuito di valutazione di rumore per la correzione di soglia di un ricevitore - Google Patents

Circuito di valutazione di rumore per la correzione di soglia di un ricevitore

Info

Publication number
IT1297100B1
IT1297100B1 IT97RM000754A ITRM970754A IT1297100B1 IT 1297100 B1 IT1297100 B1 IT 1297100B1 IT 97RM000754 A IT97RM000754 A IT 97RM000754A IT RM970754 A ITRM970754 A IT RM970754A IT 1297100 B1 IT1297100 B1 IT 1297100B1
Authority
IT
Italy
Prior art keywords
receiver
threshold correction
assessment circuit
noise assessment
noise
Prior art date
Application number
IT97RM000754A
Other languages
English (en)
Inventor
Donald R Stephens
William Mosley Jr
Original Assignee
Raytheon E Systems 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
Application filed by Raytheon E Systems Inc filed Critical Raytheon E Systems Inc
Publication of ITRM970754A1 publication Critical patent/ITRM970754A1/it
Application granted granted Critical
Publication of IT1297100B1 publication Critical patent/IT1297100B1/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/095—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using a lock detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • 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
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
IT97RM000754A 1996-12-09 1997-12-05 Circuito di valutazione di rumore per la correzione di soglia di un ricevitore IT1297100B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/762,593 US5901173A (en) 1996-12-09 1996-12-09 Noise Estimator

Publications (2)

Publication Number Publication Date
ITRM970754A1 ITRM970754A1 (it) 1999-06-05
IT1297100B1 true IT1297100B1 (it) 1999-08-03

Family

ID=25065516

Family Applications (1)

Application Number Title Priority Date Filing Date
IT97RM000754A IT1297100B1 (it) 1996-12-09 1997-12-05 Circuito di valutazione di rumore per la correzione di soglia di un ricevitore

Country Status (6)

Country Link
US (3) US5901173A (it)
AU (1) AU739342B2 (it)
CA (1) CA2218806C (it)
DE (1) DE19755897B4 (it)
GB (1) GB2320168B (it)
IT (1) IT1297100B1 (it)

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SE506200C2 (sv) * 1996-03-25 1997-11-17 Ericsson Telefon Ab L M Anordning och förfarande för kompensering av offsetspänningar vid mottagning av optiska signaler
JPH09321736A (ja) * 1996-05-27 1997-12-12 Sony Corp 受信方法及び受信装置
US6229856B1 (en) * 1997-04-14 2001-05-08 Masimo Corporation Method and apparatus for demodulating signals in a pulse oximetry system
WO1999062399A1 (en) * 1998-06-03 1999-12-09 Masimo Corporation Stereo pulse oximeter
US8014724B2 (en) 1999-10-21 2011-09-06 Broadcom Corporation System and method for signal limiting
US6801092B1 (en) * 2003-04-08 2004-10-05 Broadcom Corp. Phase locked loop that avoids false locking
KR100334911B1 (ko) * 2000-01-28 2002-05-04 오길록 적응형 전송시스템에서의 수신 신호 레벨 예측방법
EP1279238B1 (en) 2000-03-28 2005-02-09 Interdigital Technology Corporation Cdma system which uses pre-rotation before transmission
DE10050330A1 (de) * 2000-10-11 2002-04-25 Infineon Technologies Ag Signalstärkeausgleich für stark zeitvariante Mobilfunkkanäle
US7076001B2 (en) * 2001-10-16 2006-07-11 Harris Corporation System and method for an in-service decision-directed signal to noise ratio estimator
EP1499014B1 (en) * 2003-07-15 2010-03-17 STMicroelectronics S.r.l. A method for automatic gain control, for instance in a telecommunication system, device and computer program therefor
US6867728B1 (en) * 2003-11-06 2005-03-15 Lockheed Martin Corporation Methods and systems for identifying signals-of-interest
EP1557680A1 (en) * 2004-01-26 2005-07-27 STMicroelectronics S.r.l. Device for detecting the power of a radio frequency signal
CN100525123C (zh) * 2006-08-10 2009-08-05 华为技术有限公司 一种接收机及接收无线信号的方法
US8549191B2 (en) * 2010-01-04 2013-10-01 Csr Technology Inc. Method and apparatus for SATA hot unplug
FR3105661B1 (fr) * 2019-12-20 2021-11-26 Commissariat Energie Atomique Circuit de détection d'enveloppe et récepteur incorporant ce circuit
US20230208456A1 (en) * 2021-12-27 2023-06-29 Hughes Network Systems, Llc Communication terminal configured to adjust for interference and methods of use

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SU640429A1 (ru) * 1969-08-27 1978-12-30 Институт Горного Дела Со Ан Ссср Устройство дл измерени отношени сигнал/помеха в дискретных каналах св зи
US3879664A (en) * 1973-05-07 1975-04-22 Signatron High speed digital communication receiver
US4101839A (en) * 1974-11-27 1978-07-18 The United States Of America As Represented By The Secretary Of The Navy Analog-digital ratio detector
US4048566A (en) * 1976-01-05 1977-09-13 Motorola Inc. Suppressed carrier automatic gain control circuitry
US4360929A (en) * 1979-06-22 1982-11-23 Matsushita Electric Industrial Co., Ltd. Automatic gain control circuit
JPS5868330A (ja) * 1981-10-19 1983-04-23 Nippon Telegr & Teleph Corp <Ntt> 同一周波干渉検出回路
US5220468A (en) * 1982-05-10 1993-06-15 Digital Equipment Corporation Disk drive with constant bandwidth automatic gain control
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GB2174576B (en) * 1985-04-29 1989-06-28 Plessey Co Plc Improvements in or relating to receivers
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US4811423A (en) * 1986-12-23 1989-03-07 Motorola, Inc. SSB receiver with improved feedforward AGC
AU594621B2 (en) * 1987-06-23 1990-03-08 Nec Corporation Carrier-to-noise detector for digital transmission systems
DE3784717T2 (de) * 1987-09-03 1993-08-26 Philips Nv Phasen- und verstaerkungsregelung fuer einen empfaenger mit zwei zweigen.
US4870660A (en) * 1987-12-28 1989-09-26 Unisys Corporation Variable frequency rate receiver
US4888787A (en) * 1988-09-26 1989-12-19 David Kisak Receiver apparatus for spread spectrum communication systems
US4901332A (en) * 1988-10-27 1990-02-13 Unisys Corp. Noncoherent-coherent A.C. coupled base band AGC receiver
US4910467A (en) * 1988-11-02 1990-03-20 Motorola, Inc. Method and apparatus for decoding a quadrature modulated signal
US5301364A (en) * 1988-11-30 1994-04-05 Motorola, Inc. Method and apparatus for digital automatic gain control in a receiver
US5134723A (en) * 1990-04-20 1992-07-28 Carson William E Radio sensitivity enhancer
US5150384A (en) * 1990-09-28 1992-09-22 Motorola, Inc. Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters
US5083304A (en) * 1990-09-28 1992-01-21 Motorola, Inc. Automatic gain control apparatus and method
US5261004A (en) * 1991-12-17 1993-11-09 Delco Electronics Corporation Noise blanking circuit for AM stero
US5291525A (en) * 1992-04-06 1994-03-01 Motorola, Inc. Symmetrically balanced phase and amplitude base band processor for a quadrature receiver
JP2762836B2 (ja) * 1992-04-09 1998-06-04 日本電気株式会社 干渉波除去装置
KR970007983B1 (ko) * 1992-06-08 1997-05-19 모토로라 인코포레이티드 자동 이득 제어 회로 및 수신기
US5375145A (en) * 1992-08-27 1994-12-20 Quantum Corporation Multi-mode gain control loop for PRML class IV sampling data detection channel
EP0588206A1 (de) * 1992-09-15 1994-03-23 Robert Bosch Gmbh Verfahren zur Aufbereitung eines Reglerstellsignals sowie Anordnung und Verwendung
FR2706711B1 (fr) * 1993-06-17 1996-10-18 Matra Communication Procédé et dispositif de démodulation de signal numérique.
US5353301A (en) * 1993-09-17 1994-10-04 Motorola, Inc. Method and apparatus for combining multipath spread-spectrum signals
GB9320068D0 (en) * 1993-09-29 1993-11-17 Sgs Thomson Microelectronics Demodulation of fm audio carrier
US5585975A (en) * 1994-11-17 1996-12-17 Cirrus Logic, Inc. Equalization for sample value estimation and sequence detection in a sampled amplitude read channel
US5796535A (en) * 1995-05-12 1998-08-18 Cirrus Logic, Inc. Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer
US5563916A (en) * 1995-06-05 1996-10-08 Hitachi America, Ltd. Apparatus and method for varying the slew rate of a digital automatic gain control circuit
US5892631A (en) * 1995-09-08 1999-04-06 Seagate Technology, Inc. Method and an arrangement for detecting state transitions in a read signal during a bit cell timing window
US5802118A (en) * 1996-07-29 1998-09-01 Cirrus Logic, Inc. Sub-sampled discrete time read channel for computer storage systems

Also Published As

Publication number Publication date
AU739342B2 (en) 2001-10-11
GB2320168B (en) 2001-08-08
US5901173A (en) 1999-05-04
GB2320168A (en) 1998-06-10
US6094463A (en) 2000-07-25
DE19755897B4 (de) 2012-06-28
DE19755897A1 (de) 1998-06-10
GB9722431D0 (en) 1997-12-24
ITRM970754A1 (it) 1999-06-05
CA2218806A1 (en) 1998-06-09
US6229858B1 (en) 2001-05-08
CA2218806C (en) 2004-02-17
AU4679997A (en) 1998-06-11

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Legal Events

Date Code Title Description
0001 Granted