Robust method for threshold setting in a DS/DS-CDMA code acquisition

Author

Iinatti, Jari

Author_Institution

Telecommun. Lab., Oulu Univ., Finland

Volume

1

fYear

1996

fDate

29 Sep-2 Oct 1996

Firstpage

145

Abstract

This paper describes a robust method based on using a rank filter for constant false alarm rate (CFAR) threshold setting during the code acquisition process in a DS and DS-CDMA spread spectrum receiver. The method is robust because the probability of false alarms (P_fa) can be fixed independent of the input signal distribution, i.e., interference conditions. The results are presented for three example P_fa values

Keywords

Gaussian channels; code division multiple access; filtering theory; probability; pseudonoise codes; radio receivers; radiofrequency interference; spread spectrum communication; AWGN channel; CFAR threshold setting; DS spread spectrum receiver; DS-CDMA spread spectrum receiver; DS/DS-CDMA code acquisition; code acquisition process; constant false alarm rate; false alarm probability; input signal distribution; interference conditions; rank filter; robust method; threshold setting; Additive white noise; Autocorrelation; Delay; Filters; Finite impulse response filter; Gaussian noise; Interference; Jamming; Matched filters; Multiaccess communication; Robustness; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-3300-4

Type

conf

DOI

10.1109/ICUPC.1996.557796

Filename

557796