Title :
Experimental study of a polarity receiver applied to the detection of pseudorandom sequences buried in noise
Author :
Assaad, Jamal ; Moulin, Emmanuel ; Camus, Liévin
Author_Institution :
Dept. OAE, Univ. de Valenciennes, France
Abstract :
The aim of this paper is the experimental study of the one bit correlator (OBC) receivers to detect pseudorandom sequences (PRS) buried in a bandlimited additive Gaussian white noise. The one bit correlator receiver is known as a polarity receiver. Analytical expressions of the output signal-to-noise ratio (SNR) of the OBC receiver have been derived recently. These expressions is verified experimentally when the desired received signal and the local reference signal are PRS. It is shown that the output SNR depends on the input SNR and that fluctuations of the output signal play a major role for the detection of the desired signal. In order to reduce these fluctuations, a modified OBC receiver, which consists of averaging M acquisitions, is used. The probability of detection and the probability of false alarm are given. In all cases a good agreement is obtained between analytical and experimental results.
Keywords :
AWGN; bandlimited signals; correlators; fluctuations; probability; random sequences; receivers; sensitivity analysis; signal detection; signal sampling; bandlimited additive Gaussian white noise; desired received signal; false alarm probability; local reference signal; one bit correlator receiver; output signal fluctuation; polarity receiver; pseudorandom sequence detection; signal-to-noise ratio; Acoustic signal detection; Additive white noise; Correlators; Fluctuations; Hardware; Integrated circuit noise; Noise reduction; Radar detection; Signal to noise ratio; White noise;
Conference_Titel :
Information and Communication Technologies: From Theory to Applications, 2004. Proceedings. 2004 International Conference on
Print_ISBN :
0-7803-8482-2
DOI :
10.1109/ICTTA.2004.1307613
