CHEN Jian-jun, HUANG Meng-jun, ZHAO Hong-zhong, et al. Research on Estimated Threshold of CFAR Detection in Time-Frequency Domain for Coherent Radar[J]. Acta Electronica Sinica, 2013, 41(8): 1634-1639.
CHEN Jian-jun, HUANG Meng-jun, ZHAO Hong-zhong, et al. Research on Estimated Threshold of CFAR Detection in Time-Frequency Domain for Coherent Radar[J]. Acta Electronica Sinica, 2013, 41(8): 1634-1639. DOI: 10.3969/j.issn.0372-2112.2013.08.029.
For the constant false alarm rate(CFAR)detector of coherent radar in time-frequency domain
there is always a wide performance gap between the theoretical model and the practical result.Ultimately
this problem is caused by the imperfect model of the clutter
as well as the limited samples.A novel method of estimating the detection threshold is proposed in this paper.The method is based on the least square criteria and derived from the relationship between the CFAR detection threshold and the probability of false alarm.The implementation for the proposed method is given as well.Simulation results confirm the validity of the proposed method.