A Closed-Form Expression for a Maximum Likelihood Estimation-Based Monopulse Ratio Curve
Hyeongrae Kim, Jong‐Hwan Lim, Jae-Hyuk Youn, Hoon‐Gee Yang, Young-Seek Chung, D.-S. Kim, H.-Y. Lee, S.-J. Kim · Journal of Electromagnetic Waves and Applications · 2012
The performance of a monopulse estimator depends on its monopulse ratio (MR) curve. To improve its performance, a mathematical expression of the MR curve associated with the parameters of a beamforming array is needed. In this paper, a closed-form expression for a maximum likelihood (ML) based monopulse ratio (MR) curve in a uniform linear array (ULA) monopulse radar is derived mathematically. Moreover, an approximate expression for the closed-form is presented. The validity of the closed-form derivation and its approximation is demonstrated through simulation.