A Simple Hybrid Technique to Reduce Bias of Copolar Correlation Coefficient Estimates
نویسندگان
چکیده
منابع مشابه
Use of copolar correlation coefficient for probing precipitation at nearly vertical incidence
we present observations of the co-polar correlation coefficient lPhv(0) I made with ground based and airborne weather radars at nearly vertical incidence. A sharp decrease of lphv(0)l occurs at the bright band bottom and is attributed to a varying mixture ofhydrometeors with diverse shape, size, and thermodynamic phase. The largest contribution to decorrelation seems to come from wet aggregates...
متن کاملEstimation of the simple correlation coefficient.
This article investigates some unfamiliar properties of the Pearson product-moment correlation coefficient for the estimation of simple correlation coefficient. Although Pearson's r is biased, except for limited situations, and the minimum variance unbiased estimator has been proposed in the literature, researchers routinely employ the sample correlation coefficient in their practical applicati...
متن کاملThe Correlation Coefficient Technique for Pattern Matching
Introduction: The ability to track motion is essential for many MRI applications. Specific applications of interest in our lab include retrospective and prospective 2D navigator echo motion artifact correction as well as post-process image averaging[l]. Previous attempts at motion tracking can be broadly classified into: 1) phase-based subtraction or 2) image-based pattern matching techniques. ...
متن کاملRunning Head: CORRELATION COEFFICIENT NONNORMALITY 1 Reducing Bias and Error in the Correlation Coefficient Due to Nonnormality
It is more common for educational and psychological data to be non-normal than to be approximately normal. This tendency may lead to bias and error in point estimates of the Pearson correlation coefficient. In a series of Monte Carlo simulations, the Pearson correlation was examined under conditions of normal and non-normal data, and it was compared to its major alternatives, including the Spea...
متن کاملA Hybrid Switching Technique for Single-Phase AC-Module PV System to Reduce Power Losses and Minimize THD
This paper proposes a hybrid switching technique for a domestic PV system with AC-module architecture. In this PV system, independent control of PV modules, which are directly connected to DC terminals of a single-phase cascaded multilevel inverter, makes module-level MPPT possible to extract maximum available solar energy, especially in partial shading conditions. As one of the main contributi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Atmospheric and Oceanic Technology
سال: 2019
ISSN: 0739-0572,1520-0426
DOI: 10.1175/jtech-d-18-0226.1