Adaptation of Antenna Arrays with Using Correlation Matrices of a Special Types

Glushankov, E. I.; Kirik, D. I.; Kirsanov, D. M.; Rylov, E. A.

doi:10.1109/synchroinfo51390.2021.9488331

Cited by 3 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Существует большое количество различных способов вычисления выборочной КМ, каждый из которых имеет свои преимущества и недостатки [3]. При этом выборочная КМ может также обладать определенной структурой, которая зависит от формы используемой в радиотехнической системе антенной решетки (АР) [4]. В данной статье анализируются некоторые известные результаты, связанные с приближением выборочных КМ к матрицам особого вида, а также предлагается новая формула для аппроксимации выборочных КМ в кольцевых эквидистантных АР.…”

unclassified

“…полученное приближение не будет обладать той же структурой, какую имела исходная КМ [4]. Следовательно, для сохранения структуры исходной матрицы у выборочной КМ необходимо использовать особые методы построения аппроксимирующих матриц.…”

unclassified

“…Следовательно, для сохранения структуры исходной матрицы у выборочной КМ необходимо использовать особые методы построения аппроксимирующих матриц. Для построения выборочных теплицевых КМ линейных АР в [4] используется формула ( )…”

unclassified

See 2 more Smart Citations

Direct Adaption Methods for Linear and Circular Antenna Arrays

Glushankov

Tsarik²

2023

Izv. vysš. učebn. zaved. Ross., Radioèlektron.

View full text Add to dashboard Cite

Introduction. The mitigation of interferences that degrade the performance of navigation systems constitutes one of the most significant problems of contemporary satellite navigation. This problem is conventionally solved using digital adaptive space filters. Depending on a particular radio technical system, the mathematical description of digital signal processing methods may involve specific calculation structures implemented using specific calculation algorithms. For example, the use of centrosymmetric linear and circular antenna arrays in a radio navigation system allows the description of such systems in terms of Toeplitz and circulant sample covariance matrices, respectively, and the inversion of such matrices by means of special numerical methods in order to design a digital filter.Aim. A comparative analysis of the performance of space signal processing algorithms is carried out along with an estimation of Toeplitz and circulant sample covariance matrices and numerical methods of their inversion. The previously obtained results in this field are clarified.Materials and methods. An analysis of algorithm performance was carried out in the MATLAB environment using experimental recordings of satellite navigation signals and jammers obtained by an actual radio technical system.Results. A new expression was derived for estimating circulant sample covariance matrices. Formulae that describe a modification of the Bareiss numerical Toeplitz matrix inversion algorithm for the case of complex Hermitian matrix were introduced. An analysis of the results of computer simulation allowed the algorithms with the highest performance to be indicated. The amount of time taken by the algorithms based on Toeplitz and circulant matrices did not exceed 2.5 10⋅ −3 s and 0.04 s, respectively. The carrier-to-noise ratio in the processed signal was at least 46 dB. Conclusion. The formulae obtained and the algorithms analyzed can be used when implementing adaptive digital filtering of satellite navigation signals.

show abstract

unclassified

See 1 more Smart Citation

Direct Adaption Methods for Linear and Circular Antenna Arrays

Glushankov

Tsarik²

2023

Izv. vysš. učebn. zaved. Ross., Radioèlektron.

View full text Add to dashboard Cite

show abstract

Spatial Signal Processing in Centrally Symmetric Linear and Circular Antenna Arrays

Glushankov

Kirik

Khrenov

et al. 2022

2022 Systems of Signals Generating and Processing in the Field of on Board Communications

View full text Add to dashboard Cite

Quality Analysis of Space and Space-Frequency Adaptive Signal Processing Algorithms in Satellite Navigation Systems

Glushankov

Tsarik²

2022

jour

View full text Add to dashboard Cite

The problem of interference mitigation in satellite navigation signals is considered. Construction algorithms for space- and space-frequency adaptive filters are described. The processing of real satellite signals with broadband interference by means of the constructed filters is carried out in MATLAB. As a result of comparing different processing quality indicators, the most efficient filtering algorithms are identified.

show abstract

Adaptation of Antenna Arrays with Using Correlation Matrices of a Special Types

Cited by 3 publications

References 8 publications

Direct Adaption Methods for Linear and Circular Antenna Arrays

Direct Adaption Methods for Linear and Circular Antenna Arrays

Spatial Signal Processing in Centrally Symmetric Linear and Circular Antenna Arrays

Quality Analysis of Space and Space-Frequency Adaptive Signal Processing Algorithms in Satellite Navigation Systems

Contact Info

Product

Resources

About