Title :
An anti-interference method for spread spectrum system based on Amplitude Domain Processing
Author :
Shen, Feng ; Wang, Jiahuan ; Wang, Jinggang
Author_Institution :
Coll. of Autom., Harbin Eng. Univ., Harbin, China
Abstract :
The main objective of this paper is to describe and simulate the application of an interference cancelling technique named Amplitude Domain Processing (ADP) in navigation. ADP is the simplified algorithm of locally optimum detection theory. According to statistical theory, ADP is a non-linear and digital technology and it can eliminate interferences according to the statistical characteristics of the non-Gaussian interferences. ADP technique could be used in Squared-Sum Detector to obtain a code acquisition method that has been processed in amplitude. Simulation results show that the anti-interference technology can eliminate the narrow band interference effectively and improve the SNR (Signal to Noise Ratio) of spread spectrum system and the detection probability of the signals.
Keywords :
interference (signal); spread spectrum communication; amplitude domain processing; anti-interference method; code acquisition method; detection probability; interference cancelling; signal to noise ratio; spread spectrum system; Atmospheric modeling; Automation; Gaussian distribution; Gaussian noise; Interference elimination; Navigation; Signal processing; Signal to noise ratio; Spread spectrum communication; Steady-state; ADP; anti-interference; code acquisition; detection probability; spread-spectrum system;
Conference_Titel :
Mechatronics and Automation, 2009. ICMA 2009. International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4244-2692-8
Electronic_ISBN :
978-1-4244-2693-5
DOI :
10.1109/ICMA.2009.5246052
