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MIMO Telecommunications with Near Ultrasounds

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Résumé

Ultrasound telecommunications are a relevant alternative when radio frequencies are not allowed or appropriate. Performance of a near-ultrasound (15 - 20 kHz) telecommunication system with linear-frequency-modulated symbols (LFM), or chirps, is studied: Ø formal study of BER (Bit Error Rate) with varying chirp-symbol time and chirpoverlap ratio; Ø comparison with numerical simulations. We designed an 8-element linear network to achieve MIMO telecommunications, using Beam Forming (BF) and Time Reversal (TR) for focalization: Ø assessment of the propagation channel (impulse response (IR) of the environment); Ø comparison of BF and TR, at a constant emission power, in several LOS (Line Of Sight) and NLOS (Non Line Of Sight) configurations.
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Dates et versions

hal-02437001 , version 1 (13-01-2020)

Identifiants

  • HAL Id : hal-02437001 , version 1

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Arthur Aubertin, Julien de Rosny, Pierre Jouvelot. MIMO Telecommunications with Near Ultrasounds. 1ère édition des Journées Jeunes Chercheurs en Acoustique Physique, Jun 2019, Paris, France. ⟨hal-02437001⟩
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