Development of two-dimensional digital beam-forming receiving array system

Author

Ma, Xiao-feng ; Sheng, Wei-xing ; Huang, Fei

Author_Institution

Defence Key Lab. of Target Detection, Nanjing Univ. of Sci. & Technol., Nanjing

Volume

3

fYear

2008

fDate

21-24 April 2008

Firstpage

1145

Lastpage

1148

Abstract

The architecture of a 2-D digital beam-forming (DBF) receiving array experimental system is presented. In this system, wideband microstrip patch antenna is applied. Digital IF receivers (DIFR) and digital channel calibration technologies are adopted to avoid the I/Q unbalance of each channel and the amplitude, phase unbalance among channels. The DBF weight coefficients for four independent simultaneous beams are obtained in parallel by several high-speed digital signal processors (DSP) in real-time. Experimental results verify the validity of the hardware and the adaptive linearly constrained minimum variance (LCMV) algorithm used in the proposed DBF receiving array system.

Keywords

broadband antennas; calibration; digital signal processing chips; microstrip antenna arrays; radio receivers; wireless channels; I-Q unbalance; adaptive linearly constrained minimum variance algorithm; digital IF receivers; digital channel calibration technologies; high-speed digital signal processors; phase unbalance; real-time DSP; two-dimensional digital beam- forming receiving array system; wideband microstrip patch antenna; Adaptive arrays; Broadband antennas; Calibration; Digital signal processing; Digital signal processors; Hardware; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-1879-4

Electronic_ISBN

978-1-4244-1880-0

Type

conf

DOI

10.1109/ICMMT.2008.4540629

Filename

4540629