Open AccessDouble differentially coherent pseudorandom noise code acquisition method for code‐division multiple‐access system
Author(s) -
Jin Tian,
Lu Fangyao,
Liu Yang,
Qin Honglei,
Luo Xiling
Publication year - 2013
Publication title -
iet signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.384
H-Index - 42
ISSN - 1751-9683
DOI - 10.1049/iet-spr.2012.0020
Subject(s) - pseudorandom noise , pseudorandom number generator , computer science , code (set theory) , code division multiple access , algorithm , noise (video) , spread spectrum , telecommunications , artificial intelligence , programming language , set (abstract data type) , image (mathematics)
This study proposes a double differentially (DDF) coherent pseudorandom code acquisition method for code‐division multiple‐access (CDMA) system. Nonlinear loss, false alarm probability and detection probability of this method have been analysed. Compared with real differentially coherent method, DDF method can be applied to improve detection performance in CDMA system. Furthermore, the analysis and simulations in this study illustrate that the proposed detector can provide 1–3 dB improvement compared with the complex differentially coherent detector, and 2–5 dB improvement compared with the non‐coherent detector.