Title :
A temporal LMS DPI suppression algorithm for CDMA-based passive detection system
Author :
Li, Yuan ; Guo, Jianxin
Author_Institution :
Telecommun. Eng. Inst., Air Force Eng. Univ., Xi´´an, China
Abstract :
One of the major problems in CDMA based passive detection system is how to suppress the strong direct path interference (DPI) effectively. According to the features of the CDMA downlink signal and the DPI suppression requirement, a least mean squares methods (LMS) filtering algorithm based on the time domain is proposed. Theory analysis and simulation results show that at least 30 dB suppression gains can be achieved by using the LMS algorithm.
Keywords :
code division multiple access; interference suppression; least mean squares methods; CDMA; code division multiple access; direct path interference; least mean squares methods filtering algorithm; passive detection system; temporal LMS DPI suppression algorithm; Base stations; Least squares approximation; Multiaccess communication; Passive radar; Receivers; Signal processing algorithms; CDMA; DPI; LMS; passive detection;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6099960
