A.A. Podmarev1, E.S. Ustinovich2, N.A. Kudryavtsev3

1 Strela branch of MAI (Zhukovsky, Russia)
2,3 JSC “V.V. Tikhomirov Scientific Research Institute of Instrument Design” (Moscow, Russia)
 

In conditions of constant growth in the use of software-defined radio systems (SDR) technology, the question arises of creating an inexpensive radio system on an affordable ECB. The use of software-defined radio systems gives the device (system) flexibility in terms of modernization, since this approach does not imply a change in the hardware. As a rule, complex systems are characterized by multichannel. Hence, there is a need to create a multi-channel radio system.

The authors propose to use RTL-SDR radio receiving modules to organize multi-channel reception of radio signals. This radio system may be in demand in the development of small-sized radars and the study of digital diagram formation. A block diagram of a three-channel radio receiver based on RTL-SDR has been developed. A program has been developed in the LabVIEW environment that allows collecting data simultaneously from three RTL-SDR modules. Tests of the joint operation of the equipment in the SDRSharp program were carried out. A laboratory installation based on PXIe-1085 was assembled together with Phase Matrix FSW-0020 to form a test modulated signal with a power of -10 dBi, operating in the L-mode. Three RTL-SDR modules were tested together with horn antennas. A foundation has been created for the study of digital diagram formation based on RTL-SDR modules.

Podmarev A.A., Ustinovich E.S., Kudryavtsev N.A. Experimental studies of multichannel reception of radio signals based on RTL-SDR. Science Intensive Technologies. 2022. V. 23. № 1. P. 21−28. DOI: https://doi.org/10.18127/j19998465-202201-03

1. atalog/2790/75190/?utm_ source=direct.promo&utm_campaign=75190&yclid=5601653318952474835. (data obrashcheniya 2021-10-07).
2. National Instruments. Using RTL-SDR with Labview, Chapter 1: Labview on Windows. – URL: https://forums.ni.com/t5/Example-Code/Using-RTL-SDR-with-Labview-Chapter-1-Labview-on-Windows/ta-p/3538774?profile.language=en. (data obrashcheniya 2021-10-07).
3. Spravochnik po radiolokacii. V 2-h knigah. Pod red. M.I. Skolnika: Per. s angl. pod obshchej red. V.S. Verby. Kn. 2. M.: Tekhnosfera. 2015 (in Russian).
4. Ivanov V.I., Gordienko V.N., Popov G.N., Asnin L.B., Repin V.N., Tvereckij M.S., Zaslavskij K.E., Isaev R.I. Cifrovye i analogovye sistemy peredachi: Uchebnik dlya vuzov. Izd. 2-e. M.: Goryachaya liniya – Telekom, 2003. 232 s. (in Russian).
5. CROWD SUPPLY. LMS8001 Companion Extends Coverage to 10 GHz – URL: https://www.crowdsupply.com/lime-micro/limesdr-mini/updates/lms8001-companion-extends-coverage-to-10-ghz (data obrashcheniya 2021-02-08).
6. Lupov S.Yu., Muyakshin S.I., Sharkov V.V. LabVIEW v primerah i zadachah. Uchebno-metodicheskie materialy po programme povysheniya kvalifikacii «Obuchenie tekhnologiyam National Instruments». Nizhnij Novgorod. 2007. 101 s. (in Russian).
7. POIVS. Svertka. – URL: http://poivs.tsput.ru/ru/Math/Algebra/LinearAlgebra/PolylinearAlgebra/BilinearOperators/Convolution (data obrashcheniya 27.09.21) (in Russian).
8. Mizokami K. China Claims It Developed “Quantum” Radar To See Stealth Planes. Popular Mechanics. September 2016. www.popularmechanics.com/military/research/a22996/china-quantum-stealth-radar/, Retrieved September 28, 2016.
9. KerberosSDR – URL: https://aliexpress.ru/item/1005003103400082.html?sku_id=12000024102140123&spm=a2g2w.productlist.0.0. 27e3bef7duMSt5. (data obrashcheniya 2021-10-07).
10. Heckel R. Super-Resolution MIMO Radar. Proceedings of the IEEE International Symposium on Information Theory. July 2016.
11. Obzor SDR priemnika ot RTL-SDR.COM (V.3) – URL: https://radiochief.ru/radio/obzor-sdr-priemnika-ot-rtl-sdr-com-v-3/. (data obrashcheniya 2021-11-25) (in Russian).ы