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This paper presents two methods for detection DS CDMA signals hidden in the noise are described. The proposed methods are based on analysis of an averaged spectrum of the signal and an averaged spectrum of signal raised to the power 2n. These methods are difficult to use when narrowband signals are presented in an analysing frequency band. Influence of narrowband signals for the DS CDMA signals detection...
Two efficiency methods for a location service (LCS) by use the wideband code division multiple access (WCDMA) interface, in the frequency division duplex (FDD) mode, are outlined. The LCS in the WCDMA/FDD technique is based on the actual relative time differences (RTDs) between base stations of the monitoring cellular network. The proposed methods enable calculation of the geographical position of...
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