RADIO SOURCE DIRECTION FINDING IN WIDE FREQUENCY BAND USING CIRCULAR ANTENNA ARRAY
https://doi.org/10.32603/1993-8985-2018-21-6-30-40
Abstract
For the VHF broadband direction finder, coherent and incoherent direction finding algorithms for switched and non-switched connection of the antenna array (AR) to receiving device in single-signal and multi-signal direction finding modes are developed and investigated.
Their synthesis is based on the methods of space-time theory of radio systems. Numerical calculation of the direction finding characteristics of the algorithms for different number of antenna array elements determines the operating range upper limiting frequency, in which this configuration provides single-value estimates of the azimuth and elevation angle. Statistical simulation modeling shows that for an odd number of antennas, the antenna array amplitudephase response is unique in a wider frequency band than for an even number of antennas. Due to this MUSIC based property applied in the space of antenna array elements, direction finding algorithm is developed for wide frequency band with several signals overlapping in frequency, with switched and non-switched AR connection to a radio receiver. It is shown that the use of ESPRIT and MUSIC methods in free-space diagram does not allow for direction finding in a wide frequency band with the antenna array fixed configuration. The results of the field studies of the developed algorithms are presented for the single-signal and multi-signal modes of operation, software and hardware implemented in the VHF radio direction finder. A comparative analysis of the developed algorithms with the known APs with fixed configuration is performed. It is shown that with the same AR configuration, it is the direction finding algorithm that determines the frequency range in which the direction finding is unique.
About the Authors
Maya E. Shevchenko
Saint Petersburg Electrotechnical University "LETI"
Russian Federation
Russian Federation
Maya E. Shevchenko – Ph.D. in Engineering (1997), Associate Professor (2002) of the Department of Radio Electronics Equipment of Saint Petersburg Electrotechnical University"LETI". The author of 50 scientific publications. Area of expertise: radio signals reserving and processing; frequency radio monitoring; digital signal processing.
5, Professor Popov Str., 197376, St. Petersburg
Victor N. Malyshev
Saint Petersburg Electrotechnical University "LETI"
Russian Federation
Russian Federation
Victor N. Malyshev – D.Sc. in engineering (2000), Professor (2004), the Dean of faculty of Radio Equipment and Telecommunications of Saint Petersburg Electrotechnical University "LETI". The author of mors than 100 scientific publications. Area of expertise: numerical methods; microwave engineering; antennas; information networks; information security.
5, Professor Popov Str., 197376, St. Petersburg
Dilara N. Fayzullina
JSC SRI "Vector"
Russian Federation
Russian Federation
Dilara N. Fayzullina – Master of Science in Information Technologies and Communication Systems (2013), the engineer of JSC «SRI "Vector"» (Saint Petersburg). The author of 10 scientific publications. Area of expertise: radio signals reserving and processing; digital signal processing; signal detection and finding.
10, Kantemirovskaya Str., 197342, St. Petersburg
References
1. Vinogradov A. D., Dmitriev I. S. Potential Accuracy of Multi-Channel Direction Finder with Antenna Array of NonDirectional Non-Interacting Antenna Elements. Antennas. 2008, no. 3 (130), pp. 60-63. (In Ruissian)
2. New Digital Direction finder 0.5 MHz to 3000 MHz. News from Rohde & Schwarz. 2002, no. 174, pp. 47–49.
3. R&S®DDF550 Wideband Direction Finder. Available at: https://www.rohde-schwarz.com/ru/product/ddf550-productstartpage_63493-11734.html (accessed 15.12.2018).
4. Classical and Modern Direction-of-Arrival Estimation; ed. by T. E. Tuncer, B. Friedlander. New York, Elsevier Inc., 2009, 456 p.
5. Shevchenko M. E., Malyshev V. N., Faizullina D. N. Joint Detection and Direction Finding Using Switched Antenna Array. Journal of the Russian Universities. Radioelectronics. 2015, no. 5, pp. 33–39. (In Ruissian)
6. Foutz J., Spanias A., Banavar M. K. Narrowband Direction of Arrival Estimation for Antenna Arrays. Synthesis Lectures on Antennas. 2008, vol. 8, pp. 1–79. doi: 10.2200/S00118ED1V01Y200805ANT008
7. Saidov A. S., Tagilaev A. R., Aliev N. M., Aslanov G. K. Proektirovanie fazovykh avtomaticheskikh radiopelengatorov [Phase Automatic Direction Finder Design]. Moscow, Radio i svyaz', 1997, 160 p. (In Ruissian)
8. Korostelev A. A. Prostranstvenno-vremennaya teoriya radiosistem [Spatio-temporal Theory of Radio Systems]. Moscow, Radio i svyaz', 1987. 320 p. (In Russian)
9. Cheng J., Ohira T. ESPAR Antenna Signal Processing for DOA Estimation. Advances in Direction-ofArrival Estimation; ed. by S. Chandran. Norwood: Artech House, 2006, pp. 395–417.
10. Ashikhmin A. V., Vinogradov A. D., Mazlov M. G., Minin L. A. Investigation of Broadband Low-Element SingleRing Antenna Array Characteristics Using Bessel Functions. Antennas. 2006, vol. 8 (111), pp. 8–14. (In Ruissian)
11. Vinogradov A. D., Zibrov G. V., Len'shin A. V. Structures and Properties of Direction-Finding Ring Antenna Arrays With Odd Symmetry of Antenna Patterns. Antennas. 2013, vol. 5 (192), pp. 4–17. (In Ruissian)
12. Roy R., Kailath T. ESPRIT-Estimation of Signal Parameters via Rotational Invariance Techniques. IEEE Trans. Acoustics, Speech and Signal Processing, 1989, vol. ASSP-37, no. 7, pp. 984–995. doi: 10.1109/29.32276
13. Mathews C. P., Zoltowski M. D. Eigenstructure Techniques for 2-D Angle Estimation with Uniform Circular Arrays. IEEE Trans. on Signal Processing. 1994, vol. SP-42, no. 9, pp. 2395–2407. doi:10.1109/78.317861
14. Mathews C. P., Zoltowski M. D. Performance Analysis of the UCA-ESPRIT Algorithm for Circular Ring Arrays. IEEE Trans. on Signal Processing. 1994, vol. SP-42, no. 9, pp. 2536–2539. doi: 10.1109/78.317881
15. Ramos J., Mathews C. P., Zoltowski M. D. FCAESPRIT: a Closed-Form 2-D Angle Estimation Algorithm for Filled Circular Arrays with Arbitrary Sampling Lattices. IEEE trans. on Signal Processing. 1999, vol. SP-47, no. 1, pp. 213–217. doi: 10.1109/78.738255
Review
For citations:
Shevchenko M.E., Malyshev V.N., Fayzullina D.N. RADIO SOURCE DIRECTION FINDING IN WIDE FREQUENCY BAND USING CIRCULAR ANTENNA ARRAY. Journal of the Russian Universities. Radioelectronics. 2018;(6):30-40. (In Russ.) https://doi.org/10.32603/1993-8985-2018-21-6-30-40
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