Reader architectures for wireless surface acoustic wave sensors

F Lurz, T Ostertag, B Scheiner, R Weigel, A Koelpin - Sensors, 2018 - mdpi.com
Wireless surface acoustic wave (SAW) sensors have some unique features that make them
promising for industrial metrology. Their decisive advantage lies in their purely passive …

A frequency-locked-loop filter for biased multi-sinusoidal estimation

G Fedele, A Ferrise - IEEE Transactions on Signal Processing, 2014 - ieeexplore.ieee.org
In this paper, an adaptive filter, based on a third-order generalized integrator, is proposed to
estimate all the parameters of a biased sinusoid. The averaging theory is used to prove that …

Unitary PUMA algorithm for estimating the frequency of a complex sinusoid

C Qian, L Huang, HC So… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
One-dimensional (1-D) and two-dimensional (2-D) frequency estimation for a single
complex sinusoid in white Gaussian noise is a classic signal processing problem with …

An improved performance frequency estimation algorithm for passive wireless SAW resonant sensors

B Liu, C Zhang, X Ji, J Chen, T Han - Sensors, 2014 - mdpi.com
Passive wireless surface acoustic wave (SAW) resonant sensors are suitable for
applications in harsh environments. The traditional SAW resonant sensor system requires …

Low complexity subspace approach for unbiased frequency estimation of a complex single-tone

A Pourafzal, P Skrabanek, M Cheffena, S Yildirim… - Digital Signal …, 2024 - Elsevier
We propose a single-tone frequency estimator of a one-dimensional complex signal in
complex white Gaussian noise. The estimator is based on the subspace approach and the …

Fast and accurate approach for DOA estimation of coherent signals

Y Liu, H Cao, Y Wu, K Wang - Wireless Communications and …, 2022 - Wiley Online Library
An algorithm for estimation of direction of arrival (DOA) based on QR decomposition is
proposed for coherent signals in this paper. When coherent is present, the rank of the signal …

Exact frequency estimation in the iid Noise via KL divergence of accumulated power

W Sun, H Wang, Q Gu, S Rong… - IEEE Communications …, 2021 - ieeexplore.ieee.org
To solve the frequency estimation deterioration caused by independent and identically
distributed (iid) noise, this letter proposes an exact and robust frequency estimation …

A -Order Difference-Set Approach to Eliminate Phase Ambiguity of a Single-Frequency Signal

Y Li, X Zou, B Luo, W Pan, L Yan… - IEEE Signal Processing …, 2019 - ieeexplore.ieee.org
The resolution of the integer phase ambiguity among a group of spatially separated sensors
is considered, where the smallest inter-sensor spacing exceeds half wavelength (λ/2) of a …

Fast frequency estimation algorithm by least squares phase unwrapping

Z Xu, T Lu, B Huang - IEEE Signal Processing Letters, 2016 - ieeexplore.ieee.org
Phase unwrapping is one of the frequency estimation methods, which performs linear
regression (LR) on the unwrapped phase of the single sinusoid signal. The least squares …

A fine-resolution frequency estimator in the odd-DFT domain

Y Dun, G Liu - IEEE Signal Processing Letters, 2015 - ieeexplore.ieee.org
Although many frequency estimation methods are available, few are designed for high-
quality speech and audio processing systems, which typically use the modified discrete …