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1. (WO2018046859) STANDARDISED MEASUREMENT METHOD FOR MEASURING THE MODULATION OF AN AMPLITUDE-MODULATED RADIO SIGNAL AND METHOD FOR FILTERING THE RADIO SIGNAL
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/046859    International Application No.:    PCT/FR2017/052380
Publication Date: 15.03.2018 International Filing Date: 07.09.2017
IPC:
H04L 27/06 (2006.01), H04B 1/10 (2006.01), G10L 25/81 (2013.01)
Applicants: CONTINENTAL AUTOMOTIVE FRANCE [FR/FR]; 1, Avenue Paul Ourliac Intellectual Property 31100 TOULOUSE (FR).
CONTINENTAL AUTOMOTIVE GMBH [DE/DE]; Vahrenwalderstrasse, 9 30165 Hanovre (DE)
Inventors: HIVERT, Grégoire; (FR).
LIN, Chao; (FR)
Agent: CONTINENTAL AUTOMOTIVE FRANCE; 1, Avenue Paul Ourliac Intellectual Property 31100 TOULOUSE (FR)
Priority Data:
1658463 12.09.2016 FR
Title (EN) STANDARDISED MEASUREMENT METHOD FOR MEASURING THE MODULATION OF AN AMPLITUDE-MODULATED RADIO SIGNAL AND METHOD FOR FILTERING THE RADIO SIGNAL
(FR) PROCÉDÉ DE MESURE NORMÉE DE LA MODULATION D'UN SIGNAL RADIO MODULÉ EN AMPLITUDE ET PROCÉDÉ DE FILTRAGE DUDIT SIGNAL RADIO
Abstract: front page image
(EN)The invention relates to a method for filtering an amplitude-modulated radio signal (AM1), said radio signal having a bandwidth, the method comprising the steps of: converting the radio signal into a baseband signal; determining a frequency range close to the centre frequency; measuring the level of the radio signal according to frequency steps within said frequency range; determining a standardised modulation level in the radio signal, corresponding to the sum of the measurements of levels according to frequency steps, within the relevant frequency range, divided by the measurement of the level of the baseband radio signal calculated around the centre frequency; comparing the standardised noise level thus determined to a predetermined threshold, and, on the basis of said comparison, selecting a first filter (F) applied to the amplitude-modulated radio signal.
(FR)La présente invention concerne un procédé de filtrage d'un signal radio (AM1) modulé en amplitude, ledit signal radio présentant une bande passante, ledit procédé comprenant : · la transformation dudit signal radio en bande de base, · la détermination d'une fourchette de fréquences, à proximité de la fréquence centrale, · la mesure du niveau du signal radio, par pas de fréquence, dans ladite fourchette de fréquences, · la détermination d'un niveau de modulation normé dans le signal radio, correspondant à la somme des mesures de niveaux par pas de fréquence, dans la fourchette de fréquences considérée, divisée par la mesure du niveau du signal radio en bande de base calculé autour de la fréquence centrale. · la comparaison du niveau de bruit normé ainsi déterminé à un seuil prédéterminé, en fonction de ladite comparaison, le choix d'un premier filtre (F) appliqué au signal radio modulé en amplitude.
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, JO, JP, KE, KG, KH, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: French (FR)
Filing Language: French (FR)