Angle of arrival estimation in the presence of multiple access interference for CDMA cellular phone systems

被引：3

作者：

Bliss, DW ^{[1
]}

Forsythe, KW ^{[1
]}

机构：

[1] MIT, Lincoln Lab, Lexington, MA 02173 USA

来源：

SAM 2000: PROCEEDINGS OF THE 2000 IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP | 2000年

关键词：

D O I：

10.1109/SAM.2000.878040

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In code division multiple access (CDMA) cellular phone systems, such as those using the IS-95 standard, multiple users produce cochannel multiple access interference (MAI). In this paper adaptive time-domain interference mitigation techniques are developed and applied to the angle of arrival (AOA) estimation problem. This interference mitigation approach is motivated by a maximum likelihood formulation of multiuser space-time channel estimation. This approach is exercised using experimental data approximating that which might be experienced by an emergency response vehicle attempting to locate the source of an emergency 911 call using a vehicle-mounted antenna array. In this multiuser environment the users span a large range of received powers.

引用

页码：408 / 412

页数：5

共 10 条

[1]

BORGIOTTI GV, 1979, T ANTENNAS PROPAG, P842

[2]

Burg J. P., 1975, MAXIMUM ENTROPY SPEC

[3] HIGH-RESOLUTION FREQUENCY-WAVENUMBER SPECTRUM ANALYSIS [J].

CAPON, J .

PROCEEDINGS OF THE IEEE, 1969, 57 (08) :1408-&

[4]

Forsythe K. W., 1999, Conference Record of the Thirty-Third Asilomar Conference on Signals, Systems, and Computers (Cat. No.CH37020), P506, DOI 10.1109/ACSSC.1999.832381

[5]

Forsythe K. W., 1997, Lincoln Laboratory Journal, V10, P99

[6] MAXIMUM-LIKELIHOOD ANGLE ESTIMATION FOR SIGNALS WITH KNOWN WAVE-FORMS [J].