Title :
A direction-finding algorithm for lens-based antenna systems
Author :
Diggavi, Suhas N. ; Shynk, John J. ; Laub, Alan J.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
In this paper, we describe a high-resolution direction-of-arrival (DOA) estimation algorithm for the enhancement of a lens-based antenna system. In such a system, the antenna array is followed by an electromagnetic lens and a bank of power detectors (crystal video receivers). This system can handle sources over a large bandwidth and can detect pulsed sources that exist for short periods of time. The proposed algorithm operates directly on the power estimates provided by a bank of crystal video receivers (CVRs), yielding accurate DOA estimates for multiple narrow-band sources. We present computer simulations to demonstrate the improved performance achieved by the algorithm
Keywords :
antenna arrays; antenna theory; array signal processing; lens antennas; accurate DOA estimates; antenna array; crystal video receivers; direction-finding algorithm; direction-of-arrival estimation; electromagnetic lens; high-resolution DOA estimation algorithm; lens-based antenna systems; multiple narrowband sources; power detectors; power estimates; pulsed sources detection; Antenna arrays; Bandwidth; Detectors; Direction of arrival estimation; Directive antennas; Lenses; Navigation; Receiving antennas; Sensor arrays; Yield estimation;
Conference_Titel :
Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-4120-7
DOI :
10.1109/ACSSC.1993.342316
