Title :
Effects of amplifier nonlinearities on DOA estimation
Author :
Yin, J. ; Lu, Y. ; Ng, B.P.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Abstract :
This article presents the study of the nonlinear effects of amplifier gain compression and intermodulation on the accuracy of direction of arrival (DOA) in a digital array receiving system. Based on analysis and realistic computer simulation, it is shown that the gain compression has little effect on DOA estimation but the third-order intermodulation may significantly degrade DOA estimation
Keywords :
adaptive antenna arrays; array signal processing; direction-of-arrival estimation; intermodulation distortion; radiofrequency amplifiers; receiving antennas; DOA estimation; amplifier nonlinearities; computer simulation; digital array receiving system; direction of arrival estimation; gain compression; third-order intermodulation; Adaptive arrays; Antenna arrays; Array signal processing; Direction of arrival estimation; Gain; Linear antenna arrays; Radio frequency; Radiofrequency amplifiers; Receiving antennas; Signal processing algorithms;
Conference_Titel :
Phased Array Systems and Technology, 2000. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Dana Point, CA
Print_ISBN :
0-7803-6345-0
DOI :
10.1109/PAST.2000.858934
