GFSK phase estimation using Extended Kalman filtering for Non-Gaussian noise

A New GFSK Demodulation Technique using EKF in Bluetooth Receivers

“…In all simulations, two types of Bluetooth voice packets (i.e., HV1 and HV3) were used in which 100 samples per symbol and 1mW of transmission power were set. The distance between the Bluetooth transmitter and receiver is 5m [17]. Fig.…”

Robust Non-Coherent Demodulation Scheme for Bluetooth Voice Transmission Using Linear, Extended, and Unscented Kalman Filtering

“…Moreover, the author in [5] implemented an interactive KF, using a two-modulation technique, and simultaneously concluded his article by proving the UKF had a better result, but his effort was in the system with no interference, assuming the BT system was operated in an area such as a vehicle, where there is not much 802.11b interference. Nonetheless, the authors in [4] [15]- [17] have also contributed meaningfully to the same topic, to improve the non-coherent detection for GFSK proposed in their work for the BT system, by involving 802.11b interference in their results. Hence, their efforts were published, concluding with using the EKF for the purpose of a nonlinear optimization minimizing the mean square error (MES).…”

“…It was mentioned earlier, in Section 2, that [4] [15]- [17] have made meaningful contributions in the same subject that with which we are working, especially in using EKF for a non-coherent BT receiver. Furthermore, proposing an EKF for this article becomes more a matter of comparison, and some of the better achievements will be illustrated in Section 10.…”

“…The authors came up with an interactive Kalman Filtering technique to optimize the non-coherent GFSK and DPSK to produce better BER results. Finally, in [4] [15]- [17], the authors made decent contributions using an EKF for GFSK, in order to estimate the phase of the signal at the receiver of the Bluetooth system, while considering the 802.11b interference factors in Gaussian noise and non-Gaussian noise environments.…”

Non-coherent detection of GFSK using Extended Kalman Filtering for Non-Gaussian noise

“…Recently, in [12,13] EKF was used to non-coherently detect CPM and Continuous Phase Frequency Shift Keying (CPFSK) respectively and examined the method on Minimum Shift Keying (MSK) and Gaussian Minimum Shift Keying (GMSK) respectively. In [14,15], the authors used the EKF to estimate the phase of the GFSK modulated signal in Bluetooth receivers for both Non-Gaussian impulsive noise and Additive White Gaussian Noise (AWGN) respectively. However, the studies in [14,15] were limited to the performance of the EKF for estimating the phase in terms of mean square error (MSE) for different process and measurement noises.…”