A generalized adaptive code acquisition scheme using backpropagation network in DS/SS systems

Author

Yu, Takki ; Han, Sangchul ; Hong, Daesik ; Kang, Changeon

Author_Institution

Dept. of Electr. & Electron. Engin, Yonsei Univ., Seoul, South Korea

Volume

1

fYear

2002

fDate

25-28 Nov. 2002

Firstpage

436

Abstract

A generalized adaptive code acquisition scheme is proposed by using a multi-layer structure. The backpropagation network (BPN) is used in modeling the multilayer system. The timing offset of the received code can be detected by combining the hidden layer weights after an adaptation period. The characteristics of mean squared error (MSE) and weight distribution for the generalized system are analyzed, and the effects of input and hidden nodes are investigated. The generalized system provides a high detection probability and flexibility in acquisition system design.

Keywords

adaptive filters; adaptive signal detection; backpropagation; error statistics; filtering theory; mean square error methods; spread spectrum communication; synchronisation; DS/SS systems; FIR adaptive filter; MSE; acquisition system design; adaptation period; adaptive filter; backpropagation network; code synchronization; detection probability; direct sequence spread spectrum; generalized adaptive code acquisition; hidden layer weights; hidden nodes; input nodes; mean squared error; multilayer structure; multilayer system; received code; timing offset; weight distribution; Adaptive coding; Adaptive filters; Adaptive systems; Backpropagation; Delay estimation; Finite impulse response filter; Intelligent networks; Spread spectrum communication; Time measurement; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, 2002. ICCS 2002. The 8th International Conference on

Print_ISBN

0-7803-7510-6

Type

conf

DOI

10.1109/ICCS.2002.1182512

Filename

1182512