Exact Cram’er–Rao Lower Bound for Interferometric Phase Estimator

Abstract:

We are concerned with the problem of interferometric phase estimation using multiple baselines. Simple close-form efficient expressions for computing the Cramer-Rao lower bound (CRLB) for general phase estimation problems is derived. Performance analysis of the interferometric phase estimation is carried out based on Monte Carlo simulations and CRLB calculation. We show that by utilizing the Cramer-Rao lower bound we are able to determine the combination of baselines that will enable us to achieve the most accurate estimating performance.

• Periodical: Advanced Materials Research (Volumes 1004-1005)
• Pages: 1419-1426
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.1419
• Online since: August 2014
• Authors: Zhi Jie Mao, Zhi Jun Yan, Hong Wei Li, Jin Meng
• Keywords: Cram’Er-Rao Lower Bound (CRLB), Image Coregistration, Interferometry, RMSE

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