Optimal search method of DS-CDMA signal composed of time multiplexed pilot symbols and control symbols

    公开(公告)号:GB2370725B

    公开(公告)日:2004-08-11

    申请号:GB0111897

    申请日:2001-05-16

    Abstract: There is disclosed an optimal search method of DS-CDMA signals consisted of time-multiplexed pilot symbols and control symbols capable of maximizing the performance of a receiver when the signal is searched or SNR is measured and apparatus thereof. Further, the present invention proposes a method of maximizing the performance of a searcher using basically both energy of the pilot symbol and the control symbol wherein coherent integral lengths for two regions are differentiated when the receiver searches the signals, and different weights are given to the two regions when a coherent correlation value is finally non-coherently added, and a method of effectively estimating SNR.

    Optimal search method of DS-CDMA signal composed of time multiplexed known symbols and unknown symbols

    公开(公告)号:GB2370725A

    公开(公告)日:2002-07-03

    申请号:GB0111897

    申请日:2001-05-16

    Abstract: There is disclosed an optimal search method of DS-CDMA signals consisted of time-multiplexed pilot symbols and control symbols capable of maximizing the performance of a receiver when the signal is searched or SNR is measured and apparatus thereof. Further, the present invention proposes a method of maximizing the performance of a searcher using basically both energy of the pilot symbol and the control symbol wherein coherent integral lengths for two regions are differentiated when the receiver searches the signals, and different weights are given to the two regions when a coherent correlation value is finally non-coherently added, and a method of effectively estimating SNR.

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