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Adaptive Noise Cancellation: A Panacea M.Evans, R. Adhikari
The Concept 5000 Channels 1 GW Channel Signal = DARM - noise
Wiener Filter Input Signal (PEM) Covariance Matrix Norbert Wiener, MIT Block Toeplitz Cross Correlation Matrix
Wiener Filter Sim H1 & L1 DARM (S5) All Guralp & STS2 Vault not used Requires ~9 GB RAM Levinson-Durbin H1 L1 x10 x7
Adaptive Filtering / Neural Network Keenan Pepper Elena Gasparri LMS Algorithm (1st chapter of textbooks)
Filtered-X LMS Edwards, Thesis (declassified) Naval Research Postgraduate School
Applications Seismic Noise (0 - 40 Hz) Upconversion Lock Acquisition Bilinear (Crab shoulder) Acoustic Noise (50-900 Hz) Magnetic (power lines) H1/H2 correlation MICH/PRC/SRC
From LMS to Filtered-X LMS FIR Adapt Noise Witness Noisy Signal Cleaner Signal
From LMS to Filtered-X Injecting into a high gain servo loop FIR Adapt Noise Witness Total Control Signal Servo Control Signal G
From LMS to Filtered-X Separated Actuators Special case of “Filtered X- LMS” FIR Adapt Noise Witness Total Control Signal Servo Control Signal A1 G A2 C
At the 40m Test on input mode- cleaner FIR Adapt Seismic Sensors MC Length MC_L MC2 G MC1 C
At the 40m
And more !
1 Frequency Noise in Virgo by Matt Evans. 2 The Actors Noise Sources Input Mode Cleaner length noise Sensing noise on IMC lock Frequency Servo.
LIGO-G W Where Did the LSC Signals Come From? Fred Raab 27 June 02.
Virgo Control Noise Reduction Gabriele Vajente Scuola Normale Superiore, Pisa University and INFN Sezione di Pisa LSC-Virgo collaboration meeting Pasadena,
LIGO-G D 1 Status of Detector Commissioning LSC Meeting, March 2001 Nergis Mavalvala California Institute of Technology.
LIGO-G Z Report on E3/E4 Lock Losses K. Riles - University of Michigan 1 Report on E3/E4 Lock Losses David Chin, Dick Gustafson Keith.
Interferometer Control Matt Evans …talk mostly taken from…
8/13/2004 Stefan Ballmer, MIT / LIGO Hanford 1 Length and angular control loops in LIGO Stefan Ballmer Massachusetts Institute of Technology LIGO Hanford.
Monica VarvellaIEEE - GW Workshop Roma, October 21, M.Varvella Virgo LAL Orsay / LIGO CalTech Time-domain model for AdvLIGO Interferometer Gravitational.
Testing Advanced LIGO length sensing and control scheme at the Caltech 40m interferometer. at the Caltech 40m interferometer. Yoichi Aso*, Rana Adhikari,
Locking improvements after the end of VSR1 Gabriele Vajente for the Locking Group 14 th ILIAS WG1 meeting Cascina – March 6 th 2008.
LIGO-G Z March 2007, LSC meeting, Osamu Miyakawa 1 Osamu Miyakawa Hiroaki Yamamoto March 21, 2006 LSC meeting Modeling of AdLIGO arm lock acquisition.
S4 Environmental Disturbances Robert Schofield, U of O I.Pre-S4 “fixes” II.Some S4 veto issues III. Early coupling results from S4 PEM injections.
Gabriele Vajente ILIAS WG1 meeting - Frascati Noise Analysis Tools at Virgo.
1 Virgo Commissioning progress ILIAS, Nov 13 th 2006 Matteo Barsuglia on behalf of the Commissioning Team.
AGC DSP AGC DSP Professor A G Constantinides©1 Adaptive Signal Processing Problem: Equalise through a FIR filter the distorting effect of a communication.
1 S4 Environmental Disturbances Robert Schofield, U of O John Worden, Richard McCarthy, Doug Cook, Hugh Radkins, LHO Josh Dalrymple, SU I.Pre-S4 “fixes”
Thoughts on short term improvements for Mirror Suspension Control G.Losurdo - P.Ruggi.
Matt Evans, LSC March 2003 (G E)1 Lock Acquisition in LIGO Who am I? »Matt Evans »Caltech graduate What is Lock Acquisition? »The process.
Displacement calibration techniques for the LIGO detectors Evan Goetz (University of Michigan) for the LIGO Scientific Collaboration April 2008 APS meeting.
EE 426 DIGITAL SIGNAL PROCESSING TERM PROJECT Objective: Adaptive Noise Cancellation.
Main Interferometer Subsystem
Global longitudinal quad damping vs. local damping Brett Shapiro Stanford University 1/32G v13 LIGO.
Global longitudinal quad damping vs. local damping Brett Shapiro Stanford University 1/36 LIGO G v15.
EE513 Audio Signals and Systems Wiener Inverse Filter Kevin D. Donohue Electrical and Computer Engineering University of Kentucky.
Virgo Commissioning update Gabriele Vajente for the Virgo Collaboration LSC/VIRGO Meeting – MIT 2007, July LIGO-G Z.
LIGO-G Z Adaptive FIRs taking place at Lasti Richard Mittleman Laurent Ruet Brett Shapiro April 2006.
Frequency Domain Adaptive Filtering Project Supervisor Dr. Edward Jones Myles Ó Fríl.
LIGO - G R 1 HAM SAS Test Plan at LASTI David Ottaway November 2005 LIGO-G Z.
Yoichi Aso Columbia University, New York, NY, USA University of Tokyo, Tokyo, Japan July 14th th Edoardo Amaldi Conference on Gravitational Waves.
LIGO-G Z LIGO Commissioning Report LSC Meeting, Hanover August 19, 2003 Peter Fritschel, MIT.
LSC Meeting at LHO LIGO-G E 1August. 21, 2002 SimLIGO : A New LIGO Simulation Package 1. e2e : overview 2. SimLIGO 3. software, documentations.
E2 Correlations Nelson Christensen Carleton College LSC Detector Characterization LIGO-G Z.
ILIAS WG1 meeting Han/Ruthe Harald Lück ILIAS WG1 meeting, Sep. 2004, Hannover/Ruthe GEO Status (Update)
A Practical Guide to Troubleshooting LMS Filter Adaptation Prepared by Charles H. Sobey, Chief Scientist ChannelScience.com June 30, 2000.
LSC Meeting: 3/14/01Inspiral Upper Limit - Detector Characterization 1 Inspiral Upper Limit: Detector Characterization Needs Nelson Christensen Carleton.
0 - 1 © 2007 Texas Instruments Inc, Content developed in partnership with Tel-Aviv University From MATLAB ® and Simulink ® to Real Time with TI DSPs Acoustic.
LIGO- G060XXX-00-R E2E meeting, September How to design feedback filters? E2E meeting September 27, 2006 Osamu Miyakawa, Caltech.
LIGO- G R Amaldi7 July 14 th, 2007 R. Ward, Caltech 1 DC Readout Experiment at the Caltech 40m Laboratory Robert Ward Caltech Amaldi 7 July 14.
Takanori Sekiguchi External Review Control and tuning of suspension 1 T. Sekiguchi KAGRA 4th External Review.
LIGO-G D Commissioning, Part II PAC 12, June 2002 Peter Fritschel, LIGO MIT.
Calibration and the status of the photon calibrators Evan Goetz University of Michigan with Peter Kalmus (Columbia U.) & Rick Savage (LHO) 17 October 2006.
LIGO-G D Commissioning PAC11, 2001 Daniel Sigg, LIGO Hanford Observatory.
Adaptive Filters S.B.Rabet In the Name of GOD Class Presentation For The Course : Custom Implementation of DSP Systems University of Tehran 2010 Pages.
1 LIGO-G D LIGO Commissioning PAC Meeting, 18 May 2005, LIGO Livingston Joe Giaime, LSU & LLO, for the entire commissioning team. PAC Meeting,
Takanori Sekiguchi External Review Alignment control servo for type-B/type-Bp (OpLev/WFS) 1 T. Sekiguchi.
The control of the Virgo Superattenuator: present and future Giovanni Losurdo - INFN Firenze/Urbino on behalf of the Virgo Collaboration.
ECE 8443 – Pattern Recognition ECE 8423 – Adaptive Signal Processing Objectives: The FIR Adaptive Filter The LMS Adaptive Filter Stability and Convergence.
Equalization in a wideband TDMA system Three basic equalization methods Linear equalization (LE) Decision feedback equalization (DFE) Sequence estimation.
Active Noise Cancellation System Students: Jessica Arbona & Christopher Brady Advisors: Dr. Yufeng Lu.
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