Proposition of a Phase Difference Detector For the Correlation Receiver
This article proposes a new method of maintaining synchronization of carrier for the correlation receiver. We use PSK of fifth phase for this telecommunication system. However, we can apply this method for the correlation receiver of any other demodulation. As usual method for the synchronization, there is DLL(Delay Lock Loop). However we thought that we can directly find the value of phase difference, and we can modify carrier of the receiver. Therefore in this article we suggest a method to detect the phase difference and we evaluate performances. We verified the limit of detected phase difference in the strong noise and in the interference of ones own code. We used kinetic threshold for detection, We could flexibly detect the phase difference for any quantity environment. The result, showed that with S/N=-3dB and with interferences using two PN-codes, we verified that the phase difference is detected when its higher than 0.69(rad). We also explain the principle of the method by mathematic demonstration, simulation and improvement of PN-code length. At last, we compare our method to the method of DLL. We conclude that this method has good performances as the DLL.
component Correlation receiver, PN-codem PSK,Spread spectrum
Norihiro Kojima Mounir Arioua Said Belkouch
network and Telecommunication Embdded Systems and Digital Controls Laboratory ENSA Marrakech, Cadi Ayyad University B.P.575 Marrak
国际会议
2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)
北京
英文
1516-1519
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）