Diseño de esquemas de modulación para un sistema de posicionamiento local ultrasónico codificado con secuencias Zadoff-Chu

  1. S. Murano 1
  2. M. C. Pérez 1
  3. C. J. Bleakley 1
  4. J. Ureña 1
  5. C. De Marziani 1
  1. 1 Universidad de Alcalá
    info

    Universidad de Alcalá

    Alcalá de Henares, España

    ROR https://ror.org/04pmn0e78

Buch:
XXXIX Jornadas de Automática: actas. Badajoz, 5-7 de septiembre de 2018
  1. Inés Tejado Balsera (coord.)
  2. Emiliano Pérez Hernández (coord.)
  3. Antonio José Calderón Godoy (coord.)
  4. Isaías González Pérez (coord.)
  5. Pilar Merchán García (coord.)
  6. Jesús Lozano Rogado (coord.)
  7. Santiago Salamanca Miño (coord.)
  8. Blas M. Vinagre Jara (coord.)

Verlag: Universidad de Extremadura

ISBN: 978-84-9749-756-5,  978-84-09-04460-3

Datum der Publikation: 2018

Seiten: 332-339

Kongress: Jornadas de Automática (39. 2018. Badajoz)

Art: Konferenz-Beitrag

DOI: 10.17979/SPUDC.9788497497565.0332 DIALNET GOOGLE SCHOLAR lock_openRUC editor

Zusammenfassung

Many Ultrasonic Local Positioning Systems (U-LPS), consists of multiple fixed beacons that simultaneously emit ultrasonic signals whose times of arrival (ToA) are estimated at a mobile receiver. The ultrasonic signals can be encoded to allow separation of the signals at the receiver, identification of the transmitters, and mitigation of signal impairments such as multipath, the near-far efect, multiple access interference, and Doppler shift. Therefore,waveform design (coding and modulation) constitutes a key factor in determining the performance of such a system. This paper compares by simulation the performance of three modulation techniques (specifically QPSK, OFDM and FHSS) transmitting Zadoff-Chu (ZC) sequences in an U-LPS. Simulation results indicate that ZC coded QPSK modulation with non-coherent detection, ofers greater accuracy under realistic conditions than the other modulation schemes.

Fuente de los datos: Dialnet