Title :
Overlaying orthogonal coding for sidelobe suppression in HFSW radar
Author :
Li Chao ; Zhang Ning
Author_Institution :
Res. Inst. of Electr. Technol. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
Strong sidelobes not only lead to false alarm, but also affected the target detection. By overlaying an orthogonal coding over any analog or digital signal, we can completely remove most of the ACF (auto correlation function) sidelobes without any increase to the mainlobe sidelobes. In this paper, we discuss how to choose the original signal for HFSW radar and give the affection of different overlaying matrix.
Keywords :
interference suppression; matrix algebra; object detection; orthogonal codes; radar interference; radar signal processing; ACF; HFSW radar; overlaying matrix; overlaying orthogonal coding; sidelobe suppression; target detection; Correlation; Doppler effect; Doppler radar; Encoding; Ionosphere; Radar detection; High freqeuency surfacewave radar; Sidelobe suppression; orthogonal matrix; radar signal;
Conference_Titel :
Signal Processing (ICSP), 2010 IEEE 10th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5897-4
DOI :
10.1109/ICOSP.2010.5657081
