Range estimation in radar using maximum likelihood estimator

RADAR technology is getting significance place in estimation and detection of short and long range targets. One of the important estimation parameter is radar delay time. In this paper, Maximum Likelihood Estimator (MLE) for range estimation using static radar is derived. Range of radar is estimated by estimating the round trip delay time. Delay is observed from the active transmitted pulse of radar. In addition, the Cramer Rao Lower Bound (CRLB) for range is also calculated. Simulation of MLE is performed. Monte Carlo simulations are also done to show that MLE achieves the CRLB at high signal to noise ratio.