Title :
Characterization of the conditional distribution of monopulse ratio for chi-square fluctuating targets and its exploitation for track initiation
Author :
Sedehi, Matteo ; Lombardo, Pierfrancesco
Author_Institution :
Dept. INFOCOM, Univ. of Rome, Rome
Abstract :
The use of monopulse ratio can contribute to track initiation schemes for low observable targets. In this paper, we derive a complete statistical characterization of the joint distribution of amplitude and monopulse ratio under the two hypotheses of target present (H1) and absent (H0). Moreover several track initiation logics, based on likelihood function are derived, for different levels of use of amplitude and monopulse ratio information. The results show that the use of the monopulse information reduces the loss due to antenna gain for targets offset from the antenna beam pointing direction.
Keywords :
monopole antennas; radar antennas; radar cross-sections; statistical distributions; target tracking; antenna beam pointing direction; antenna gain; chi-square fluctuating target; conditional distribution characterization; likelihood function; monopulse ratio; statistical characterization; track initiation scheme; Directive antennas; Gaussian noise; Logic; Noise level; Noise measurement; Radar antennas; Radar tracking; Random variables; Signal to noise ratio; Target tracking;
Conference_Titel :
Radar Symposium, 2006. IRS 2006. International
Conference_Location :
Krakow
Print_ISBN :
978-83-7207-621-2
DOI :
10.1109/IRS.2006.4338103