Adaptive Threshold Setting in Acquisition of DS-UWB Signals

Author

Kuang, Quan ; Qiu, Hongbing ; Chen, Donghua

Author_Institution

Commun. & Inf. Eng., Guilin Univ. of Electron. Technol., Guilin

fYear

2006

fDate

27-30 Nov. 2006

Firstpage

1

Lastpage

5

Abstract

An adaptive threshold acquisition system for direct sequence ultra-wideband (DS-UWB) signal is presented. The proposed adaptive scheme is based on radar constant false alarm rate (CFAR) technique. By deriving formulas for the detection probability and false alarm rate, its performance over an additive white Gaussian noise (AWGN) channel is analyzed and compared with the existing fixed threshold system. The proposed system maintains a constant false alarm probability, while the performance of the conventional fixed threshold system varies dramatically relative to the background noise. The results are supported by simulations.

Keywords

AWGN channels; adaptive signal detection; probability; radar detection; ultra wideband radar; AWGN channel; CFAR technique; DS-UWB signal acquisition; adaptive threshold acquisition system; adaptive threshold setting; additive white Gaussian noise; background noise; constant false alarm probability; radar constant false alarm rate; ultra-wideband radio system; AWGN; Adaptive systems; Additive white noise; Bandwidth; Modulation coding; Performance analysis; Pulse modulation; Pulse width modulation; Spread spectrum communication; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology, 2006. ICCT '06. International Conference on

Conference_Location

Guilin

Print_ISBN

1-4244-0800-8

Electronic_ISBN

1-4244-0801-6

Type

conf

DOI

10.1109/ICCT.2006.341692

Filename

4146337