Instantaneous GNSS Ambiguity Resolution and Attitude Determination via Riemannian Manifold Optimization

no code implementations • 20 May 2022 • Xing Liu, Tarig Ballal, Mohanad Ahmed, Tareq Y. Al-Naffouri

Given the characteristics of the employed nonlinear constraints, we formulate GNSS attitude determination as an optimization problem on a manifold.

Manifold Optimization for High Accuracy Spatial Location Estimation Using Ultrasound Waves

no code implementations • 28 Mar 2021 • Mohammed H. AlSharif, Ahmed Douik, Mohanad Ahmed, Tareq Y. Al-Naffouri, Babak Hassibi

This paper reports the design of a high-accuracy spatial location estimation method using ultrasound waves by exploiting the fixed geometry of the transmitters.

Vocal Bursts Intensity Prediction

Range Estimation of a Moving Target Using Ultrasound Differential Zadoff-Chu Codes

no code implementations • 10 Feb 2021 • Mohammed H. AlSharif, Mohamed Saad, Mohamed Siala, Mohanad Ahmed, Tareq Y. Al-Naffouri

For the same movement range, the system provides range estimates with a root mean square error (RMSE) less than 0. 76 mm in a high SNR scenario (10 dB), and an MSE less than 0. 85 mm in a low SNR scenario (-10 dB).