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Pub. No.:    WO/2006/011356    International Application No.:    PCT/JP2005/012812
Publication Date: 02.02.2006 International Filing Date: 12.07.2005
G01H 17/00 (2006.01), G01H 3/00 (2006.01), G10K 15/00 (2006.01)
Applicants: WAKAYAMA UNIVERSITY [JP/JP]; 930, Sakaedani, Wakayama-shi, Wakayama 6408510 (JP) (For All Designated States Except US).
MORISE, Masanori [JP/JP]; (JP) (For US Only).
IRINO, Toshio [JP/JP]; (JP) (For US Only).
KAWAHARA, Hideki [JP/JP]; (JP) (For US Only).
BANNO, Hideki [JP/JP]; (JP) (For US Only)
Inventors: MORISE, Masanori; (JP).
IRINO, Toshio; (JP).
KAWAHARA, Hideki; (JP).
BANNO, Hideki; (JP)
Agent: SUGIMURA, Kosaku; 7F, Kazan Building, 2-4, Kasumigaseki 3-chome, Chiy oda-ku, Tokyo 1000013 (JP)
Priority Data:
2004-221942 29.07.2004 JP
(JA) インパルス応答測定方法及び装置
Abstract: front page image
(EN)[PROBLEMS] An impulse-responsive measurement method, device, system and program, and a recording medium, which can improve a measurement precision without lowering an SN ratio all over the bandwidth of a measuring signal from low- to high-frequency ranges. [MEANS FOR SOLVING PROBLEMS] A signal generation unit (21) of an impulse-responsive measurement device (10-1) generates a W-TSP signal (x(t)) having the characteristics of a TSP signal and a Log-TSP signal. A D/A conversion unit (22) converts the digital signal (x(t)) into the analog signal (x(t)), and outputs the converted signal to a head-phone (2) or a speaker (5). An A/D conversion unit (23) inputs an analog signal (y(t)) received by a microphone (3) or a microphone (6), and converts the inputted signal into the digital signal (y(t)). An inverse signal generation unit (24) generates an inverse W-TSP signal (x-1(t)). A convoluting operation unit (25) convolutes the signal (y(t)) and the inverse W-TSP signal (x-1(t)) thereby to calculate an impulse response (g(t)).
(FR)[PROBLÈMES] Procédé, dispositif, système et programme de mesure des réponses aux impulsions, et support d’enregistrement, pour améliorer la précision des mesures sans baisser le rapport SN sur toute la largeur de bande d’un signal de mesure allant des basses aux hautes fréquences. [MOYENS DE RÉSOUDRE LES PROBLÈMES] Une unité de génération du signal (21) d’un dispositif de mesure des réponses aux impulsions (10-1) génère un signal W-TSP (x(t)) ayant les caractéristiques d’un signal TSP et d’un signal Log-TSP. Une unité de conversion D/A (22) convertit le signal numérique (x(t)) en signal analogique (x(t)), et envoie le signal converti dans un casque à écouteurs (2) ou un haut-parleur (5). Une unité de conversion A/D (23) produit le signal analogique (y(t)) reçu par un microphone (3) ou un microphone (6), et convertit le signal produit en signal numérique (y(t)). Une unité de génération d’un signal inverse (24) génère un signal W-TSP inverse (x-1(t)). Une unité d’opération de convolution (25) ondule le signal (y(t)) et le signal W-TSP inverse (x-1(t)) pour ainsi calculer une réponse aux impulsions (g(t)).
(JA)[課題] 測定用信号の低周波域から高周波域までの全帯域において、SN比が低下することなく測定精度を向上させることが可能なインパルス応答測定方法、装置、システム、プログラム及び記録媒体を提供する。 [解決手段] インパルス応答測定装置10-1の信号発生部21は、TSP信号及びLog-TSP信号の特性を有するW-TSP信号x(t)を発生する。D/A変換部22は、デジタルの信号x(t)をアナログの信号x(t)に変換し、ヘッドホン2またはスピーカー5に出力する。そして、A/D変換部23は、マイクロホン3またはマイクロホン6により受信されたアナログの信号y(t)を入力し、デジタルの信号y(t)に変換する。逆信号発生部24は、逆W-TSP信号x-1(t)を発生する。そして、畳み込み演算部25は、信号y(t)及び逆W-TSP信号x-1(t)に対して畳み込み演算を施し、インパルス応答g(t)を算出する。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)