Electronic Design

What’s the Difference Between Power Density and Power Spectral Density?

Defining laser-beam power density. Power spectral density (PSD) is the measure of a signal's power content versus frequency. PSD gives designers an idea of how the power of a signal is distributed ...
AZOM

Power Spectral Density: Understanding Surfaces at Different Scales

The concept of Power Spectral Density (PSD) is extremely beneficial when specifying optics of various types, with PSD proving to be a useful metric in laser fusion and other extreme application spaces ...
EDN

Test Ideas: Measure DSL power spectral density

A DSL (digital subscriber loop) transmitter's PSD (power-spectral density) is its signature in a network. Industry standards specify the allowed power in dBm/Hz in different parts of the ...
EDN

Spectral analysis and modulation, part 2: Power spectrum analysis

This series is excerpted from “Digital Signal Processingand Applications, 2nd Edition.” Order this book today at www.newnespress.comor by calling 1-800-545-2522 and receive a 20% discount! Use ...
JSTOR Daily

On Testing for Serial Correlation with a Wavelet-Based Spectral Density Estimator in Multivariate Time Series

A new one-sided test for serial correlation in multivariate time series models is proposed. The test is based on a comparison between a multivariate spectral density estimator and the spectral density ...
Electronic Design

What’s the Difference Between Power Density and Power Spectral Density? (Download)

The basic definition of power density is the rated (or nominal) output power of a device divided by the volume (volume = x · y · z) occupied by the device. Common units of measurement for power ...