A New High-Resolution and Stable Mv-SVD Algorithm for Coherent Signals Detection

Dosouky, Basma El; Abdullah, Amr Hussein Hussein; Khamis, S.

doi:10.2528/pierm14021603

Cited by 7 publications

(18 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, the proposed GE/PSO technique is applied to the high resolution MV-SVD DoA estimation technique presented in [7]. Figure 11 shows a very close copy of the ULA pattern.…”

Section: Case 3: Application Of the Proposed Ge/pso Array Synthesis Tmentioning

confidence: 99%

“…The simulation results reveal that the two techniques have very close performances, but the complexity of the GE/PSO algorithm is much lower than the MoM/GA. 6 2.2465 a 6 5.1173 a 6 5.1506 a 7 2.5522 a 8 2.8022 a 9 2.9793 a 10 3.0712 HPBW= 6.1879…”

Section: Case 1: Synthesis Of Chebyshev Antenna Arraymentioning

confidence: 99%

“…(9), and Eq. (10), respectively in [7] where the MV-SVD DoA estimation technique is presented. These equations are rewritten as follows.…”

Section: Case 3: Application Of the Proposed Ge/pso Array Synthesis Tmentioning

confidence: 99%

“…, θ D ) where (D ≤ L). The output of each array element in the antenna array at time t is expressed in a matrix form as [7],…”

Section: Case 3: Application Of the Proposed Ge/pso Array Synthesis Tmentioning

confidence: 99%

“…Many research efforts attempted to estimate the DoAs of coherent and non-coherent sources either using single snapshot or multi-snapshots. Recently, a new high resolution DoA estimation technique "MV-SVD" for coherent signals is presented in [7]. It employs a hybrid combination between the virtual array extension, singular value decomposition (SVD), and modified MUSIC algorithms.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A New Ge/Pso Antenna Arrays Synthesis Technique and Its Application to Doa Estimation

Abdullah¹

2017

PIER M

Self Cite

View full text Add to dashboard Cite

Abstract-Direction of arrival estimation has a noteworthy significance in numerous applications, such as radar systems, smart antennas, sonar, mobile communications, and space communications. The algorithms used to estimate the direction of arrival are to some degree complex and time consuming. Also, the number of antenna elements is a discriminating parameter for assessing the performance of the DoA technique. For real time systems, quick and savvy techniques are required. Along these lines, decreasing the estimation time and also reducing the system cost while keeping a generally high precision are crucial issues. In this paper, a new technique for linear antenna arrays synthesis using optimized number of antenna elements and its application to direction of arrival estimation is introduced. The synthesized arrays exhibit approximately the same radiation pattern as the original arrays. The optimized antenna arrays are synthesized using reduced number of antenna elements. In this case, the number of antenna elements reduction will minimize the system cost and decrease the number of picked samples from the different signal sources. As the number of samples decreases, the dimensions of the steering matrix and data correlation matrix are reduced. In this context, the computational burden, estimation time, and system cost are optimized. The proposed technique can be applied to single or multi-snapshot DoA estimation techniques.

show abstract

“…In this case, the proposed GE/PSO technique is applied to the high resolution MV-SVD DoA estimation technique presented in [7]. Figure 11 shows a very close copy of the ULA pattern.…”

Section: Case 3: Application Of the Proposed Ge/pso Array Synthesis Tmentioning

confidence: 99%

Section: Case 1: Synthesis Of Chebyshev Antenna Arraymentioning

confidence: 99%

“…(9), and Eq. (10), respectively in [7] where the MV-SVD DoA estimation technique is presented. These equations are rewritten as follows.…”

Section: Case 3: Application Of the Proposed Ge/pso Array Synthesis Tmentioning

confidence: 99%

“…, θ D ) where (D ≤ L). The output of each array element in the antenna array at time t is expressed in a matrix form as [7],…”

Section: Case 3: Application Of the Proposed Ge/pso Array Synthesis Tmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A New Ge/Pso Antenna Arrays Synthesis Technique and Its Application to Doa Estimation

Abdullah¹

2017

PIER M

Self Cite

View full text Add to dashboard Cite

show abstract

DOA/MoM‐based ABF algorithm for SINR enhancement

et al. 2019

View full text Add to dashboard Cite

Optimized VAA Based Synthesis of Elliptical Cylindrical Antenna Array for SLL Reduction and Beam Thinning Using Minimum Number of Elements

et al. 2021

View full text Add to dashboard Cite

In this paper, new virtual antenna array (VAA) based synthesis techniques are introduced for side lobe level (SLL) reduction, beam thinning, and number of elements minimization for elliptical cylindrical antenna arrays (ECAA) of radar systems. Thereby, significant improvements in the array gain and directivity are achieved, which enhance the detection range and angular resolution of the radar. Furthermore, the overall implementation cost of the system is highly reduced by saving the number of elements and the corresponding RF chains and simplifying the feeding network. Firstly, the proposed technique decomposes the single transmit/receive ECAA into a separate transmit linear antenna array (LAA) and receive elliptical antenna array (EAA). Secondly, the number of antenna elements, element spacing, and excitations of the created LAA and EAA are optimized using particle swarm optimization (PSO) to produce efficient beamformed patterns. Finally, the Kronker product of the optimized LAA and EAA patterns is performed to form the optimized virtual ECAA (V-ECAA) pattern. We also introduced both the uniform feeding based V-ECAA technique and the non-uniform feeding based V-ECAA synthesis technique for more flexibility and better productivity in antenna arrays design. The simulation results revealed that the uniform feeding based V-ECAA provides an identical pattern to that of the traditional uniform feeding ECAA while saves the number of elements by 66.6%. While in the case of non-uniform feeding based V-ECAA, it provides much lower SLL and narrower HPBW than those of the ECAA while saving the number of elements by 63.8%. Furthermore, the HB is applied to provide additional beam thinning and SLL reduction of the proposed nonuniform V-ECAA that is denoted as (HBV-ECAA). The possibility of practical validations of the synthesized V-ECAAs is verified using the computer simulation technology (CST) microwave studio package, which gives users an integrated design environment and achieves realizable and robust designs.

show abstract

A New High-Resolution and Stable Mv-SVD Algorithm for Coherent Signals Detection

Cited by 7 publications

References 11 publications

A New Ge/Pso Antenna Arrays Synthesis Technique and Its Application to Doa Estimation

A New Ge/Pso Antenna Arrays Synthesis Technique and Its Application to Doa Estimation

DOA/MoM‐based ABF algorithm for SINR enhancement

Optimized VAA Based Synthesis of Elliptical Cylindrical Antenna Array for SLL Reduction and Beam Thinning Using Minimum Number of Elements

Contact Info

Product

Resources

About