Abstract
Modulation techniques play an important role on the performance of parametric loudspeaker. One of the most popular among them is the recursive single-sideband amplitude modulation (SSB-AM) technique due to its low distortion and bandwidth requirement. The recursive SSB-AM modulation consists of two basic parts: the Hilbert filter and the equalization filter. Usually, these two parts operate at a sample rate several times higher than the carrier frequency, which incurs a heavy computational load. In this paper, a novel implementation of the recursive SSB-AM technique is proposed. Simulations showed that the computational load is significantly reduced by the proposed implementation without any performance degradation.
| Original language | English |
|---|---|
| Pages (from-to) | 650-656 |
| Number of pages | 7 |
| Journal | Shengxue Xuebao/Acta Acustica |
| Volume | 41 |
| Issue number | 5 |
| Publication status | Published - Sept 1 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 Acta Acustica.
ASJC Scopus Subject Areas
- Acoustics and Ultrasonics