Measuring Time-of-Flight in an Ultrasonic LPS System Using Generalized Cross-Correlation

被引：28

作者：

Manuel Villladangos, Jose ^{[1
]}

Urena, Jesus ^{[1
]}

Jesus Garcia, Juan ^{[1
]}

Mazo, Manuel ^{[1
]}

Hernandez, Alvaro ^{[1
]}

Jimenez, Ana ^{[1
]}

Ruiz, Daniel ^{[1
]}

De Marziani, Carlos ^{[2
]}

机构：

[1] Univ Alcala de Henares, Polytech Sch, Dept Elect, Madrid 28805, Spain

[2] Natl Univ Patagonia San Juan Bosco, Dept Elect Engn, RA-9000 Comodoro Rivadavia, Chubut, Argentina

来源：

SENSORS | 2011年 / 11卷 / 11期

关键词：

generalized cross-correlation; ultrasonic LPS; phase transform; Kasami codes; LOCALIZATION;

D O I：

10.3390/s111110326

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this article, a time-of-flight detection technique in the frequency domain is described for an ultrasonic Local Positioning System (LPS) based on encoded beacons. Beacon transmissions have been synchronized and become simultaneous by means of the DS-CDMA (Direct-Sequence Code Division Multiple Access) technique. Every beacon has been associated to a 255-bit Kasami code. The detection of signal arrival instant at the receiver, from which the distance to each beacon can be obtained, is based on the application of the Generalized Cross-Correlation (GCC), by using the cross-spectral density between the received signal and the sequence to be detected. Prior filtering to enhance the frequency components around the carrier frequency (40 kHz) has improved estimations when obtaining the correlation function maximum, which implies an improvement in distance measurement precision. Positioning has been achieved by using hyperbolic trilateration, based on the Time Differences of Arrival (TDOA) between a reference beacon and the others.

引用

页码：10326 / 10342

页数：17

共 50 条

[21] Generalized Cross-Correlation .2. Discretization of Generalized Cross-Correlation and progress to date in its implementation
Belmont, MR
Hotchkiss, AJ
Maskell, SJ
Morris, EL
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1997, 64 (02): : 327 - 335
[22] Ultrasonic Imaging using two dimensional cross-correlation function
Ing, RK
Fourneaux, P
Fink, M
1998 IEEE ULTRASONICS SYMPOSIUM - PROCEEDINGS, VOLS 1 AND 2, 1998, : 825 - 829
[23] TIME-OF-FLIGHT DETECTOR FOR ULTRASONIC INSTRUMENTATION
WITHERS, P
ELECTRONIC ENGINEERING, 1993, 65 (796): : 32 - 32
[24] Calibrating an ultrasonic computed tomography system using a time-of-flight based positioning algorithm
Filipik, Adam
Peterlik, Igor
Hemzal, Dusan
Jan, Jiri
Jirik, Radovan
Zapf, Michael
Ruiter, Nicole
2007 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-16, 2007, : 2146 - +
[25] DISTORTION ANALYSIS ON MEASURING THE IMPULSE-RESPONSE OF A SYSTEM USING A CROSS-CORRELATION METHOD
BENVENUTO, N
AT&T BELL LABORATORIES TECHNICAL JOURNAL, 1984, 63 (10): : 2171 - 2192
[26] NEUTRON SPECTROMETER FOR MEASURING SCATTERING CROSS SECTIONS BY TIME-OF-FLIGHT METHOD
GERASIMO.VF
ZENKEVIC.VS
MOSKALEV, SS
SOVIET ATOMIC ENERGY-USSR, 1970, 28 (02): : 150 - &
[27] Time difference measurement of ultrasonic pulses using cross-correlation function between analytic signals
Sugasawa, S., 1600, Japan Society of Applied Physics (41):
[28] ON THE CROSS-CORRELATION OF GENERALIZED BARKER SEQUENCES
ZHANG, N
GOLOMB, SW
IEEE TRANSACTIONS ON INFORMATION THEORY, 1990, 36 (06) : 1478 - 1480
[29] Time difference measurement of ultrasonic pulses using cross-correlation function between analytic signals
Sugasawa, S
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2002, 41 (5B): : 3299 - 3307
[30] The generalized cross-correlation Method for time delay estimation of infrasound signal
Meng Liang
Li Xi-Hai
Zhang Wan-Gang
Liu Dai-Zhi
2015 FIFTH INTERNATIONAL CONFERENCE ON INSTRUMENTATION AND MEASUREMENT, COMPUTER, COMMUNICATION AND CONTROL (IMCCC), 2015, : 1320 - 1323

← 1 2 3 4 5 →