Target Number Recognition for Low-Resolution Radar Based on Hilbert-Huang Transform - Multimedia and Signal Processing - page 569

Table 1. The correct rate of recognition under different fighters number

Target number 1 2 3 4 correct rate

1 100 0 0 0 100%

2 0 100 0 0 100%

3 0 6 91 3 91%

4 0 6 11 81 81%

SNR = 10 dB

and the formation target is 1 or 2
fighters, the correct rate of recognition is 100%; when the formation target is 4
fighters, the correct rate falls, which is caused by the complexity of the signal
structure of the target. But even so, the correct rate has reached more than 80%. It
indicates that the proposed algorithm based on HHT not only have a good recognition
for the formation target that contains less fighters, but also is adaptable for the
formation target that contains more fighters.

Table 1 shows that when

6 Conclusions

A target number recognition method for low-resolution radar based on Hilbert-Huang
transform is proposed in the paper. The simulation test shows that the method has
better anti-noise performance and multi-target recognition ability, which has
applicable value in engineering project.

Acknowledgments. This paper was supported by Province Science Foundation of
Jiangsu ( No. BK2011837 ).

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