Wideband DOA estimation based on focusing signal subspace
Sign Up to like & getrecommendations! Published in 2019 at "Signal, Image and Video Processing"
DOI: 10.1007/s11760-018-1396-4
Abstract: The traditional wideband direction-of-arrival (DOA) estimation algorithms usually require the preliminary DOA estimations, which determine the accuracy of the final DOA estimations. To remedy the apparent performance degradation, this paper introduces a novel direction-of-arrival (DOA)… read more here.
Keywords: signal subspace; focusing signal; doa; subspace ... See more keywords
Quantitative signal subspace imaging
Sign Up to like & getrecommendations! Published in 2021 at "Inverse Problems"
DOI: 10.1088/1361-6420/ac349b
Abstract: We develop and analyze a quantitative signal subspace imaging method for single-frequency array imaging. This method is an extension to multiple signal classification which uses (i) the noise subspace to determine the location and support… read more here.
Keywords: signal subspace; method; target; subspace imaging ... See more keywords
High-Accuracy DOA Estimation Based on an Improved Sample Correlation Matrix
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2023.3259426
Abstract: In a direction-finding process, high-resolution subspace-based algorithms are the most popular ones. It is well-known that their performance of direction of arrival (DOA) estimation mainly depends on the accuracy of the signal subspace. However, the… read more here.
Keywords: doa estimation; signal subspace; correlation matrix; correlation ... See more keywords
High-Accuracy DOA Estimation Algorithm at Low SNR Through Exploiting a Supervised Index
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2022.3144121
Abstract: Performance of direction of arrival (DOA) estimation is one of the most important issues in array signal processing. Subspace-based algorithms provide a good compromise between the estimation accuracy and computational complexity. However, these methods are… read more here.
Keywords: doa estimation; index; signal subspace; estimation ... See more keywords
Detection of the Number of Exponentials by Invariant-Signal-Subspace Matching
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Information Theory"
DOI: 10.1109/tit.2022.3153107
Abstract: We present a novel and computationally simple solution to the problem of determining the number of exponentials in a given time-series, which is applicable to both white and colored noise. The solution is based on… read more here.
Keywords: signal subspace; subspace matching; number exponentials; invariant signal ... See more keywords
Detection of the Number of Signals by Signal Subspace Matching
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Signal Processing"
DOI: 10.1109/tsp.2021.3053495
Abstract: We present a novel and computationally simple solution to the problem of detecting the number of signals, which is applicable to both white and colored noise, and to a very small number of samples. The… read more here.
Keywords: signal subspace; number signals; subspace; subspace matching ... See more keywords