Title :
Wordlength effect on CMA adaptive phased array antenna using fixed-point arithmetic
Author :
Boonpoonga, Akkarat ; Sirisuk, Phaophak ; Krairiksh, Monai
Author_Institution :
Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
This paper investigates a wordlength effect on an adaptive phased array antenna using the constant modulus algorithm (CMA). The antenna is a flat four-beam compact phased array whose main beam can be switched into four directions by using four one-bit phase shifters. A beam with maximum received power is exploited as an initial beam for CMA. The wordlength investigation will be shown in term of the signal constellations, SINR trajectories and antenna patterns.
Keywords :
adaptive antenna arrays; antenna radiation patterns; fixed point arithmetic; interference (signal); phase shifters; 1 bit; CMA adaptive phased array antenna; SINR trajectories; antenna patterns; beam compact phased array; constant modulus algorithm; fixed-point arithmetic; phase shifters; signal constellations; wordlength effect; Adaptive algorithm; Adaptive arrays; Adaptive systems; Antenna arrays; Communication switching; Fixed-point arithmetic; Interference elimination; Mobile communication; Phased arrays; Switches;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606986
