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| Narrow-band interference rejection in PN spread spectrum systems using SVD method |
| Sun Liping; Hu Guangrui |
| Dept. of Electronic Eng.,Shanghai Jiaotong Univ., Shanghai 200030 China |
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Abstract When the strong tone interference exists in the Direct Sequence Spread Spec-trum(DSSS) system, the traditional linear prediction filter performs poorly. A system model employing the proposed SVD-based technique to reject the single-tone interference in a DSSS system is presented. Simulation results show that SVD method has strong interference sup-pression ability, especially SVD outperforms conventional LMS by a gain of 3dB at BER=10-2. Also the SVD methods avoids the convergence problem that the LMS algorithm has.
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Received: 24 May 2002
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2003, Vol. 25 
