Subjective evaluation of different error correction schemes for application with a 900 MHz frequency hopper communication system

Authors

  • Kimberly Braaten Faculty of Engineering, University of Regina, Regina, Sask. S4S 0A2, Canada
  • Dean Foster Acoustics Group - ENC Nortel, 3705 35th St. N.E., Calgary, Alta. T1Y 6C2, Canada
  • Bruno Korst-Fagundes Acoustics Group - ENC Nortel, 3705 35th St. N.E., Calgary, Alta. T1Y 6C2, Canada
  • Haoye Shen Acoustics Group - ENC Nortel, 3705 35th St. N.E., Calgary, Alta. T1Y 6C2, Canada

Keywords:

Communication channels (information theory), Delta modulation, Error correction, Frequency hopping, Pulse code modulation, Radio interference, Speech intelligibility, Spread spectrum communication, Subjective testing, Wireless telecommunication systems, Adaptive delta pulse code modulation (ADPCM), Frequency hopper communication systems

Abstract

This paper presents an analysis of subjective tests conducted with a 900 MHz frequency hopper. The primary purpose of such a study is to evaluate the listeners' response to radio channel interference causing loss of speech data. The pre-testing phase determined the users' preference for a 32 kbits/s Adaptive Delta Pulse Code Modulation (ADPCM) system. The three main tests performed determined the parameters of the error correction schemes most preferred by the listeners. The purpose of the tests performed was three-fold: to determine the type of correction scheme preferred by the listeners, to subjectively evaluate the performance of the preferred correction scheme, and to determine the response of the listeners to different interference scenarios. Results from the subjective testing performed are presented and analyzed in this report.

Additional Files

Published

1999-03-01

How to Cite

1.
Braaten K, Foster D, Korst-Fagundes B, Shen H. Subjective evaluation of different error correction schemes for application with a 900 MHz frequency hopper communication system. Canadian Acoustics [Internet]. 1999 Mar. 1 [cited 2026 May 13];27(1):29-34. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1187

Issue

Vol. 27 No. 1 (1999)

Section

Technical Articles

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