Efficient implementation of DOA estimation for DS-CDMA systems with smart antennas

Author

Yang, Li ; Ming, HU ; Liwan, Liyang ; Weifeng, Pan ; Yaqin, Chen ; Zhenghe, Feng

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

Volume

1

fYear

2000

fDate

2000

Firstpage

160

Abstract

An efficient implementation of DOA estimation is proposed for DS-CDMA systems with smart antennas. We suggest that the received signal is first decoded to enhance its SNR and reduce its complexity, then a rough estimation is done to simplify the ANN structure before data is processed by a backpropagation artificial neural network (BP ANN). Simulation results show this method is more precise and stable and can endure lower SNR than many other algorithms

Keywords

adaptive antenna arrays; backpropagation; code division multiple access; decoding; direction-of-arrival estimation; neural nets; parameter estimation; spread spectrum communication; BP ANN; DOA estimation; DS-CDMA systems; SNR; artificial neural network; backpropagation; decoding; rough estimation; smart antennas; Artificial neural networks; Decoding; Direction of arrival estimation; Directive antennas; Frequency estimation; Interference; Microwave antennas; Multiaccess communication; Sensor systems; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-6394-9

Type

conf

DOI

10.1109/ICCT.2000.889189

Filename

889189