Cramér-Rao bounds on mensuration errors
Related Experiment Video
Updated: Jun 16, 2026

Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle
Published on: August 30, 2021
Abstract:
The Cramér-Rao (CR) bound is an inequality that sets a lower bound on the variance of an estimator. The paper presents an application of this bound to the problem of mensuration. Explicit results are given for the width of a pulse, incoherently imaged by an optical system. The results are given in terms of the SNR of the observed signal and the autocorrelation function of the system line spread function. The effects of another unknown parameter (pulse amplitude), an application to sampled data imagery, and the calculation of confidence limits are presented.
Related Concept Videos
Regression Toward the Mean
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
Random and Systematic Errors
Random and Systematic Errors
Margin of Error
The Menstrual Cycle
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a uterine...
