Channel Tracking Using Particle Filtering in Unresolvable Multipath Environments

Channel Tracking Using Particle Filtering in Unresolvable Multipath Environments

Blog Article

We propose a new timing error detector for timing tracking loops inside the Rake receiver in rbf2030 spread spectrum systems.Based on a particle filter, this timing error detector jointly tracks the delays of each path of the frequency-selective channels.Instead of using a conventional channel estimator, we have introduced a joint time delay and channel estimator with almost no additional computational complexity.The proposed scheme avoids the drawback of the classical early-late gate detector which is not able to separate closely spaced paths.

Simulation results show that the proposed detectors outperform the conventional fr9345 early-late gate detector in indoor scenarios.