Abstract: Altitude angel can influence the echo waveform of radar altimeter severely, so it is an important parameter in altimeter tracking, and there are several approaches to estimate it. In this paper the authors describe two algorithms based on altimeter waveform tracking and carry out the accuracies of them. Afterwards, the authors implement some Monte-Carlo simulations, consider the performance of the algorithms and validate the conclusions of theoretic analysis.

Key words: Radar Altimeter, Attitude Angle, Error Analysis, Monte-Carlo Simulation