power variance

USAGE SUMMARY

The phrase "power variance" is correct and usable in written English.
It can be used in contexts related to statistics, engineering, or any field where variations in power levels are being discussed. Example: "The power variance in the system indicates fluctuations that need to be addressed to ensure stability."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

17 human-written examples

P N ( k ) is the normalized ICI power (variance) of the k th subcarrier.

EURASIP Journal on Wireless Communications and Networking

As the number of snapshots decreased, the signal power (variance matrix) estimation error are accordantly increased.

EURASIP Journal on Advances in Signal Processing

Several measures were proposed such as peak-to-average power ratio, instantaneous power variance, and cubic metric.

EURASIP Journal on Wireless Communications and Networking

bIn contrast to Basu & Rathouz [16], we found that the PGLM/EEE with a power variance function failed to converge.

Health Economics Review

In several study cases, HOS are shown to be more promising than the second-order stochastic methods, namely, power, variance, covariance, and spectra.

EURASIP Journal on Advances in Signal Processing

A power variance function defined as Var(ε i ) = σ2|υ i |2t was specified in the model to account for the heterogeneity of error variance.

Forest Ecosystems

Human-verified similar examples from authoritative sources

Similar Expressions

43 human-written examples

The approximations in (22) and (23) are for sufficiently small noise power variances, means the variance of error of RSS measurements is small enough which is considered in this work.

EURASIP Journal on Wireless Communications and Networking

Note that these are functions of transmit powers, variances of channel gains, and transmission rates.

EURASIP Journal on Wireless Communications and Networking

The patients with MetS had significantly lower very low frequency, total power, and variance in HRV-0, total power and variance in HRV-2, and variance in HRV-3.

Cardiovascular Diabetology

Consistent with previous studies, sleep disturbance and psychomotor retardation possessed significant explanatory power for variance in NK cell number and NKCA, respectively.

Journal of Affective Disorders

Figure 3 Example of LLR according to input signal power, noise variance, and a priori SNR in a speech frame in car noise (5dB SNR).

EURASIP Journal on Advances in Signal Processing

Expert writing Tips

Best practice

When discussing the consistency of a power source, quantify the "power variance" with specific metrics (e.g. standard deviation, range) to provide concrete information.

Common error

Do not use "power variance" interchangeably with general terms like "power issues" or "power problems". "Power variance" specifically refers to the statistical measure of dispersion, not simply any difficulty related to power.

Linguistic Context

The phrase "power variance" functions as a noun phrase. It refers to the statistical measure of dispersion or variability in power levels. Based on Ludwig's examples, it is primarily used in technical and scientific writing.

Expression frequency: Uncommon

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, the phrase "power variance" is a technical term primarily used within scientific and engineering fields to quantify the variability in power levels. Ludwig AI confirms its correctness in written English. Although not commonly encountered in general conversation, understanding its specific meaning—the statistical measure of dispersion—is crucial in technical contexts. When discussing "power variance", it’s important to use precise language and quantify it with appropriate metrics. Alternatives such as "power fluctuation" or "power variability" can be used depending on the specific nuances you want to convey.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

power fluctuation

Focuses on the changing nature of power, rather than the statistical spread.

power variability

Emphasizes the quality of being variable or subject to change in power.

variation in power

Rephrases the query by reversing the order of terms, emphasizing the concept of variation.

power deviation

Highlights the extent to which power levels differ from a norm or average.

fluctuations of power

Rephrases the query by emphasizing the dynamic nature of power changes.

power instability

Indicates a lack of stability in power supply or levels.

power fluctuation range

Specifies the range within which power levels fluctuate.

power oscillation

Suggests a rhythmic variation in power.

power inconsistency

Highlights a lack of uniformity or predictability in power.

power drift

Implies a gradual shift in power levels over time.

FAQs

How is "power variance" measured?

The "power variance" is typically measured using statistical methods such as calculating the variance or standard deviation of power measurements over a given period. It reflects the dispersion of power values around the mean.

What does a high "power variance" indicate?

A high "power variance" suggests that the power levels are fluctuating significantly. This could indicate instability in the power supply, inconsistent performance of a device, or the presence of noise or interference.

What are some other terms to describe fluctuating power?

Alternatives to "power variance" include "power fluctuation", "power variability", or "power deviation", depending on the specific context. Each term emphasizes slightly different aspects of power changes.

In what contexts is the term "power variance" commonly used?

"Power variance" is commonly used in technical fields such as electrical engineering, signal processing, and statistics, especially when analyzing the stability and reliability of power systems or electronic devices.