Performance Comparison of Different Codes in an UltrasonicPositioning System using DS-CDMA

被引:0
|
作者
Perez, M. C. [1 ]
Urena, J. [1 ]
Hernandez, A. [1 ]
Jimenez, A. [1 ]
Ruiz, D. [1 ]
Alvarez, F. J. [2 ]
De Marziani, C. [3 ]
机构
[1] Univ Alcala de Henares, Dept Elect, Alcala De Henares, Spain
[2] Univ Extremadura, Dept Elect & Electromech Eng, Badajoz, Spain
[3] Natl Univ Patagonia, Dept Elect, Comodoro Rivadavia, Argentina
关键词
IMPLEMENTATION; CORRELATOR;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this work, several Code Division Multiple Access encoding schemes are evaluated for their application in ultrasonic sensory systems based on the determination of times-of-flight. Proper encoding improves the performance of such systems in terms of noise immunity, capability of simultaneous measurements and precision in the distance measurements. Important applications that include encoded ultrasonic signals are obstacle detection, local positioning in ubiquitous computing or non-destructive testing. Here, Kasami, Golay and Loosey Synchronous codes are experimentally tested in a privacy-oriented ultrasonic Local Positioning System based on hyperbolic trilateration.
引用
收藏
页码:125 / +
页数:3
相关论文
共 50 条
  • [31] Performance enhancement of DS-CDMA system using overlapping sectors with interference avoidance
    Ng, BK
    Sousa, E
    2000 IEEE SIXTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, PROCEEDINGS, VOL 1 AND 2: COMMUNICATIONS FOR A NEW MILLENNIUM, 2000, : 88 - 92
  • [32] Performance of DS-CDMA system with smart antenna for different bandwidths in the wideband multipath channel
    Jeon, JS
    Lee, JW
    Kim, CS
    57TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VTC 2003-SPRING, VOLS 1-4, PROCEEDINGS, 2003, : 348 - 351
  • [33] Performance of low-rate orthogonal convolutional codes in DS-CDMA applications
    Ormondroyd, RF
    Maxey, JJ
    IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 1997, 46 (02) : 320 - 328
  • [34] Simulation modelling of the effects of ISI performance of DS-CDMA codes for a Wireless LAN
    Wysocki, T
    Tan, KT
    MODELLING AND SIMULATION 1996, 1996, : 535 - 539
  • [35] Interleaving for outer convolutional codes in DS-CDMA systems
    Brück, S
    Sorger, U
    Gligorevic, S
    Stolte, N
    IEEE TRANSACTIONS ON COMMUNICATIONS, 2000, 48 (07) : 1100 - 1107
  • [36] Comparison of Multi-User Detectors of DS-CDMA System
    Khairnar, Kavita
    Nema, Shikha
    PROCEEDINGS OF WORLD ACADEMY OF SCIENCE, ENGINEERING AND TECHNOLOGY, VOL 10, 2005, 10 : 193 - 195
  • [37] BER Performance of Walsh–Hadamard Like Kronecker Product Codes in a DS-CDMA and Cognitive Underlay System
    G. Suchitra
    M. L. Valarmathi
    Wireless Personal Communications, 2013, 71 : 2023 - 2043
  • [38] Assignment of spreading codes in DS-CDMA UWB systems
    Jones, RA
    Smith, DH
    Perkins, S
    2003 IEEE CONFERENCE ON ULTRA WIDEBAND SYSTEMS AND TECHNOLOGIES, CONFERENCE PROCEEDINGS, 2003, : 359 - 363
  • [39] BER performance analysis of multistage PIC scheme in an asynchronous DS-CDMA system with long scrambling codes
    Xiao, P
    Ström, E
    VTC2004-SPRING: 2004 IEEE 59TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS, 2004, : 952 - 957
  • [40] Channel estimation for DS-CDMA with aperiodic spreading codes
    Li, KM
    Liu, H
    ICASSP '99: 1999 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS VOLS I-VI, 1999, : 2535 - 2538