An overview of direction-of-arrival estimation methods using adaptive directional time-frequency distributions
PK Eranti, BD Barkana - Electronics, 2022 - mdpi.com
Direction of arrival (DOA) is one of the essential topics in array signal processing that has
many applications in communications, smart antennas, seismology, acoustics, radars, and …
many applications in communications, smart antennas, seismology, acoustics, radars, and …
A passive DOA estimation algorithm of underwater multipath signals via spatial time-frequency distributions
Direction of arrival (DOA) estimation of underwater multipath signals has become an
indispensable part of many military and civil applications in the oceanic field. However …
indispensable part of many military and civil applications in the oceanic field. However …
Novel direction of arrival estimation using adaptive directional spatial time-frequency distribution
Novel spatial time-frequency distributions and instantaneous frequency estimation scheme
are developed for the proposed direction of arrival estimation scheme. A new class of spatial …
are developed for the proposed direction of arrival estimation scheme. A new class of spatial …
Sparsity-aware adaptive directional time–frequency distribution for source localization
N Ali Khan, S Ali - Circuits, Systems, and Signal Processing, 2018 - Springer
Multi-component characteristics and missing data samples introduce artifacts and cross-
terms in quadratic time–frequency distributions, thus affecting their readability. In this study …
terms in quadratic time–frequency distributions, thus affecting their readability. In this study …
Direction of arrival estimation of sources with intersecting signature in time–frequency domain using a combination of IF estimation and MUSIC algorithm
Time–frequency (TF) approaches are frequently employed for source localization at low
signal to noise ratio. However, TF approaches fail to achieve the desired performance for …
signal to noise ratio. However, TF approaches fail to achieve the desired performance for …
Performance comparison of time-frequency distributions for estimation of instantaneous frequency of heart rate variability signals
NA Khan, P Jönsson, M Sandsten - Applied Sciences, 2017 - mdpi.com
The instantaneous frequency (IF) of a non-stationary signal is usually estimated from a time-
frequency distribution (TFD). The IF of heart rate variability (HRV) is an important parameter …
frequency distribution (TFD). The IF of heart rate variability (HRV) is an important parameter …
Array signal processing and systems
We are delighted to present this special issue of Multidimensional Systems and Signal
Processing on Array Signal Processing and Systems. Sensor arrays play an important role …
Processing on Array Signal Processing and Systems. Sensor arrays play an important role …
An efficient direction of arrival estimation algorithm for sources with intersecting signature in the time–frequency domain
An efficient direction of arrival estimation method is proposed. The proposed algorithm
accurately estimates the instantaneous frequency of signals received by multiple sensors …
accurately estimates the instantaneous frequency of signals received by multiple sensors …
Blind source separation schemes for mono-sensor and multi-sensor systems with application to signal detection
In this paper, blind source separation (BSS) techniques based on time–frequency (t–f)
distributions are proposed for multi-sensor and mono-sensor scenarios. The proposed …
distributions are proposed for multi-sensor and mono-sensor scenarios. The proposed …
DOA estimation of non-stationary and close-spaced sources based on unified parameterized model
J Zhang, T Li, Q He, Z Peng - IEEE Sensors Journal, 2023 - ieeexplore.ieee.org
Time–frequency (TF) analysis can improve the performance of direction-of-arrival (DOA)
estimation by only utilizing the valid TF points in the TF plane. However, when instantaneous …
estimation by only utilizing the valid TF points in the TF plane. However, when instantaneous …