Title :
DOA estimation of CDMA signals and the realization utilizing TMS320
Author :
Wenke, Liu ; Liang, Jin ; Chenxin, Ma
Author_Institution :
Inf. & Eng. Inst., China
Abstract :
In this paper, an effective DOA estimation algorithm, element-wise division operation, is presented for DS-CDMA system under multi-user environment. Because the algorithm requires neither complex eigenvalue decomposition operations nor source number estimation, the algorithm can be realized timely utilizing DSP device TMS320, and the circuit structure and flow chart is presented.
Keywords :
code division multiple access; digital signal processing chips; direction-of-arrival estimation; eigenvalues and eigenfunctions; spread spectrum communication; DOA estimation algorithm; DS-CDMA system; TMS320 DSP device; circuit structure; complex eigenvalue decomposition; element-wise division operation; flow chart; multiuser environment; source number estimation; Antenna arrays; Circuits; Digital signal processing; Direction of arrival estimation; Eigenvalues and eigenfunctions; Flowcharts; Matched filters; Multiaccess communication; Multiple access interference; Signal resolution;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9335-X
DOI :
10.1109/WCNM.2005.1544106
