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The technology of Direct Sequence Code Division Multiple Access (DS-CDMA) has been chosen for mobile communication systems because of numerous advantages. A major advantage is that it can provide a better capacity compared to the other possible technologies of multiple access. In spread spectrum system the signal bandwidth is increased to a value much larger than is needed to transmit the underlying...
This paper proposes an adaptive pseudonoise (PN) code acquisition system that adopts smart antennas and a cell averaging constant false alarm rate (CA-CFAR) processor to achieve reliable PN code acquisition in the presence of fading and interference. Hence, the decision threshold is adjusted according to the varying environment in order to improve the detection performance. The performance of the...
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