PN acquisition algorithms in SESS system

Author

Lin, Dan ; Zhen, Weixue ; Li, Zhongling

Author_Institution

Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

1

fYear

2005

Firstpage

449

Abstract

The traditional spread spectrum communication systems have employed deterministic pseudo-random sequences for signal spreading and de-spreading. The self-encoded spread spectrum (SESS) communication system does not use deterministic codes as spreading codes, but time-varying random codes, which change with the information source. Spreading code acquisition is a key technology in the self-encoded spread spectrum system. For reliable signal despreading, we need rapid and reliable synchronization. An efficient acquisition scheme based on transmitting the synchronization head periodically, using the matched filter and automatic decision threshold-level control based on a so-called constant false alarm (CFAR) criterion for a SESS system is presented in this paper, and the theoretical analysis and simulation are discussed in detail.

Keywords

matched filters; pseudonoise codes; random codes; signal detection; spread spectrum communication; synchronisation; time-varying channels; CFAR criterion; PN acquisition algorithms; SESS system; automatic decision threshold-level control; constant false alarm criterion; matched filter; self-encoded spread spectrum; signal despreading; spreading code acquisition; synchronization; time-varying random codes; Analytical models; Automatic control; Chaotic communication; Communication system control; Communication systems; Matched filters; Redundancy; Signal generators; Spread spectrum communication; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on

Print_ISBN

0-7803-9015-6

Type

conf

DOI

10.1109/ICCCAS.2005.1493447

Filename

1493447