Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Direction of Arrival Estimation with a Novel Single-Port Smart Antenna | EURASIP Journal on Applied Signal Processing 2004 9 1364-1375 2004 Hindawi Publishing Corporation Direction of Arrival Estimation with a Novel Single-Port Smart Antenna Chen Sun School of Electrical and Electronic Engineering Nanyang Technological University Nanyang Avenue Singapore 639798 Email csun@ Nemai C. Karmakar Department of Electrical and Computer Systems Engineering Monash University Clayton VIC 3800 Australia Email Received 19 May 2003 Revised 13 November 2003 A novel direction of arrival DOA estimation technique that uses the conventional multiple-signal classification MUSIC algorithm with periodic signals is applied to a single-port smart antenna. Results show that the proposed method gives a high-resolution 1 degree DOA estimation in an uncorrelated signal environment. The novelty lies in that the MUSIC algorithm is applied to a simplified antenna configuration. Only 1 analogue-to-digital converter ADC is used in this antenna which features low power consumption low cost and ease of fabrication. Modifications to the conventional MUSIC algorithm do not bring much additional complexity. The proposed technique is also free from the negative influence by the mutual coupling among antenna elements. Therefore it offers an economical way to extensively implement smart antennas into the existing wireless mobile communications systems especially at the power consumption limited mobile terminals such as laptops in wireless networks. Keywords and phrases smart antennas direction finding multiple-signal classification digital beamforming array antennas parasitic array antenna. 1. INTRODUCTION The wireless industry is growing 6 times faster than the fixed line services. The number of the mobile subscribers has grown from billion in 1999 to billion in 2003. The global revenue from the wireless market has been doubled from 1999 to 2003 as more than 400 billion dollars 1 . Wireless communication systems are evolving .
