Abstract
In non-cooperative communication applications such as automatic modulation recognition, it is necessary to blindly estimate some parameters of the received signal. In this paper, we address the symbol-rate estimation of single-tone (i.e., single-carrier) digitally modulated signals. In the proposed algorithm, we first filter the received signal by using a lowpass filter bank, and then pass each of the filtered outputs through a fourth-order nonlinear unit. By proper design, several nonlinear outputs will have spectral peaks at the frequency of symbol-rate. The proposed algorithm extracts several symbol-rate candidates from each nonlinearity output and assigns a confident metric to each of these candidates. Based on the symbol-rate candidates and their associated metrics, a majority vote scheme is then employed to determine the final estimate of the symbol-rate. The validity of the proposed algorithm has been verified through simulations.
| Original language | English (US) |
|---|---|
| Article number | 1464868 |
| Pages (from-to) | 1437-1440 |
| Number of pages | 4 |
| Journal | Proceedings - IEEE International Symposium on Circuits and Systems |
| DOIs | |
| State | Published - 2005 |
| Event | IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan Duration: May 23 2005 → May 26 2005 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering