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1. (WO2017066553) METHODS AND APPARATUS FOR IMPROVED SENSOR VIBRATION CANCELLATION
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Pub. No.: WO/2017/066553 International Application No.: PCT/US2016/057018
Publication Date: 20.04.2017 International Filing Date: 14.10.2016
IPC:
G01J 1/02 (2006.01) ,G01J 1/42 (2006.01) ,G01S 5/16 (2006.01) ,G08B 29/18 (2006.01)
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
02
Details
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
42
using electric radiation detectors
G PHYSICS
01
MEASURING; TESTING
S
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
5
Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
16
using electromagnetic waves other than radio waves
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
29
Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
18
Prevention or correction of operating errors
Applicants: RAYTHEON BBN TECHNOLOGIES CORP.[US/US]; 10 Moulton Street Cambridge, MA 02138, US
Inventors: COLEMAN, Ronald, Bruce; US
MULLEN, Richard, James; US
MAZUREK, Jeffrey; US
Agent: VAVRA, Shaun, R.; US
Priority Data:
14/885,28916.10.2015US
Title (EN) METHODS AND APPARATUS FOR IMPROVED SENSOR VIBRATION CANCELLATION
(FR) PROCÉDÉS ET APPAREILS DESTINÉS À AMÉLIORER L'ANNULATION DES VIBRATIONS DE CAPTEURS
Abstract:
(EN) Optical sensing systems having improved vibration cancelation, and methods of achieving improved vibration cancelation. In one example, an optical sensing system (200) includes an optical sensor (210) configured to produce an unprocessed sensor output signal (215) representative of a response of the optical sensor to at least an optical signature of interest and a local vibration excitation, a reference sensor (220) configured to provide a reference signal responsive (225) to the local vibration excitation, and a controller (260), including an adaptive digital filter (230), coupled to the optical sensor and to the reference sensor, and configured to receive the reference signal and to adjust one or more coefficients of the adaptive digital filter to minimize coherence between a residual signal (255) and the reference signal, the residual signal being a difference between the sensor output signal and a filter output signal (235) from the adaptive digital filter.
(FR) L'invention concerne des systèmes de détection optiques permettant une meilleure annulation des vibrations, et des procédés permettant de parvenir à une annulation améliorée des vibrations. Conformément à un exemple, un système de détection optique (200) comprend un capteur optique (210) configuré pour produire un signal de sortie de capteur non traité (215) représentatif d'une réponse du capteur optique à au moins une signature optique d'intérêt et à une excitation de vibrations locales, un capteur de référence (220) configuré pour fournir un signal de référence en réponse (225) à l'excitation des vibrations locales, et un dispositif de commande (260) comprenant un filtre numérique adaptatif (230) couplé au capteur optique et au capteur de référence, et configuré pour recevoir le signal de référence et pour régler un ou plusieurs coefficients du filtre numérique adaptatif afin de réduire au minimum la cohérence entre un signal résiduel (255) et le signal de référence, le signal résiduel étant la différence entre le signal de sortie de capteur et un signal de sortie de filtre (235) dans le filtre numérique adaptatif.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)