Abstract
Proposes novel method-the chaotic pulse amplitude modulation to implement ultra-wide band (UWB) direct chaotic communications. The implementation of chaotic pulse amplitude modulation (CPAM) and demodulation is described. The sporadic-coupling synchronization methods for the UWB system based on CPAM are simulated with electronics workbench (EWB). Means of the synchronization are confirmed by the simulation results. The simulation result for the probability of bit error showed that the performance of CPAM was worse than traditional methods such as quadrature phase shift keying (QPSK). However the introduction of chaotic signal much improves security of communication.
| Original language | English |
|---|---|
| Pages (from-to) | 614-617 |
| Number of pages | 4 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 28 |
| Issue number | 7 |
| Publication status | Published - Jul 2008 |
Keywords
- Chaotic pulse amplitude modulation
- Chaotic synchronization
- Ultra wide band