WSEAS Transactions on Communications
Print ISSN: 1109-2742, E-ISSN: 2224-2864
Volume 13, 2014
Pseudo Peak Suppression in Generating Range Profile with Multi-Carrier Chirp
Authors: , ,
Abstract: To ensure the reliability of transmission and prevent inter-carrier interference (ICI) between sub-bands, the sub-carrier frequency increment is usually greater than the bandwidth of sub-band for multi-carrier chirp. That will bring on false targets generated by pseudo peaks on High Resolution Range Profile (HRRP). At the presence of false targets, it is difficult to get the true position of target due to the serious influence on target detection. In this paper, the mechanism of pseudo peaks generation is analyzed and an algorithm is proposed to remove pseudo peaks while the image resolution is improved by Super-SVA, which reduces the echo pulse width. With the pulse width less than an unambiguous range, the HRRP without false targets can be obtained. With the analysis and simulation of single and multi-targets, the results indicate that this algorithm can effectively remove false targets caused by the pseudo peaks.
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Keywords: Multi-carrier communications, pseudo peak, Super-SVA, HRRP, Target detection, Chirp signal
Pages: 631-637
WSEAS Transactions on Communications, ISSN / E-ISSN: 1109-2742 / 2224-2864, Volume 13, 2014, Art. #69