Software Defined Radio Architecture Applied to Multi-Antenna Single Channel Direction Finding Systems

Nguyen Canh Minh

Direction finding system can be utilized in radar, in sonar systems in order to find the direction of arrival (DOA) of signal of interest for the purpose of positioning of sources. The DOA information can be also used in advanced wireless communication systems for space division multiplexing access as well as for spatial channel modeling. Conventional direction finding system utilizes multi-antenna system or by single switched antenna followed by digital or analogue receivers and a digital signal processing block. We propose in this paper, a robust single channel direction finding system devoted to radar and positioning systems. The proposed solution is based on software defined radio receivers that follow us to digitalize directly radio frequency (RF) signals with low sampling frequency. The proposed system takes advantages of flexibilities, reconfigurabilites thanks to software defined architecture. The system is modelled and simulated for the test of its performance through the DOA estimate of signal of interest by employing the super-resolution algorithm named multiple signal classification (MUSIC)

Select Volume / Issues:

• Volume 8, Issue 4, July 2017

Year:

2017

Type of Publication:

Article

Keywords:

Direction Finding System; All Digital Receiver Architecture; SDR; MUSIC; Direction of Arrival

Journal:

IJECCE

Volume:

8

Number:

4

Pages:

268-271

Month:

July

ISSN:

2249-071X