Output SNR Calculator

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Analog Noise and Power Analysis

Amplitude Modulation Characteristics

DSBSC Modulation

Frequency Modulation

Fundamentals of Analog Communications

Sideband and Frequency Modulation

✖Signal Power at refers to the amount of energy present in the entire message signal.ⓘ Signal Power [P_s]			+10% -10%
✖Noise power is the power generated by a random electromagnetic process. Interfering and unwanted power in an electrical device or system.ⓘ Noise Power [P_n]			+10% -10%

✖Signal to noise ratio (SNR) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.ⓘ Output SNR [SNR]

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Formula

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Output SNR

Formula

`"SNR" = log10("P"_{"s"}/"P"_{"n"})`

Example

`"0.60206dB"=log10("8W"/"2W")`

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Output SNR Solution

STEP 0: Pre-Calculation Summary

Formula Used

Signal to Noise Ratio = log10(Signal Power/Noise Power)
SNR = log10(P_s/P_n)
This formula uses 1 Functions, 3 Variables

Functions Used

log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)

Variables Used

Signal to Noise Ratio - (Measured in Decibel) - Signal to noise ratio (SNR) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.
Signal Power - (Measured in Watt) - Signal Power at refers to the amount of energy present in the entire message signal.
Noise Power - (Measured in Watt) - Noise power is the power generated by a random electromagnetic process. Interfering and unwanted power in an electrical device or system.

STEP 1: Convert Input(s) to Base Unit

Signal Power: 8 Watt --> 8 Watt No Conversion Required
Noise Power: 2 Watt --> 2 Watt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

SNR = log10(P_s/P_n) --> log10(8/2)

Evaluating ... ...

SNR = 0.602059991327962

STEP 3: Convert Result to Output's Unit

0.602059991327962 Decibel --> No Conversion Required

FINAL ANSWER

0.602059991327962 ≈ 0.60206 Decibel <-- Signal to Noise Ratio

(Calculation completed in 00.004 seconds)

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Credits

Created by Passya Saikeshav Reddy

CVR COLLEGE OF ENGINEERING (CVR), India

Passya Saikeshav Reddy has created this Calculator and 10+ more calculators!

Verified by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has verified this Calculator and 600+ more calculators!

< 14 Analog Noise and Power Analysis Calculators

SNR for AM Demodulation

Go SNR of AM System = ((Modulation Index^2*Amplitude of Message Signal)/(1+Modulation Index^2*Amplitude of Message Signal))*Signal to Noise Ratio

Mean Square Value of Shot Noise

Go Mean Square Shot Noise Current = sqrt(2*(Total Current+Reverse Saturation Current)*[Charge-e]*Effective Noise Bandwidth)

RMS Thermal Noise Current

Go RMS Thermal Noise Current = sqrt(4*[BoltZ]*Temperature*Conductance*Noise Bandwidth)

RMS Noise Voltage

Go RMS Noise Voltage = sqrt(4*[BoltZ]*Temperature*Noise Bandwidth*Noise Resistance)

Noise Factor

Go Noise Factor = (Signal Power at Input*Noise Power at Output)/(Signal Power at Output*Noise Power at Input)

SNR for PM System

Go SNR of PM System = Phase Deviation Constant^2*Amplitude of Message Signal*Signal to Noise Ratio

SNR for FM System

Go SNR of FM System = 3*Deviation Ratio^2*Amplitude of Message Signal*Signal to Noise Ratio

Power Density Spectrum of Thermal Noise

Go Power Spectral Density of Thermal Noise = 2*[BoltZ]*Temperature*Noise Resistance

Noise Power at Output of Amplifier

Go Noise Power at Output = Noise Power at Input*Noise Factor*Noise Power Gain

Thermal Noise Power

Go Thermal Noise Power = [BoltZ]*Temperature*Noise Bandwidth

Output SNR

Go Signal to Noise Ratio = log10(Signal Power/Noise Power)

Power Spectral Density of White Noise

Go Power Spectral Density of White Noise = [BoltZ]*Temperature/2

Noise Power Gain

Go Noise Power Gain = Signal Power at Output/Signal Power at Input

Equivalent Noise Temperature

Go Temperature = (Noise Factor-1)*Room Temperature

Output SNR Formula

Signal to Noise Ratio = log10(Signal Power/Noise Power)
SNR = log10(P_s/P_n)

Why is SNR used?

Signal-to-Noise Ratio (SNR) measures the strength of a signal against background noise. It quantifies signal quality by comparing the level of a desired signal to the level of background noise. SNR is crucial in communication systems, electronics, and data analysis to determine the reliability and clarity of transmitted information.

How to Calculate Output SNR?

Output SNR calculator uses Signal to Noise Ratio = log10(Signal Power/Noise Power) to calculate the Signal to Noise Ratio, Output SNR is defined as the ratio of signal power to noise power, often expressed in decibels. A ratio higher than 1:1 indicates more signal than noise. Signal to Noise Ratio is denoted by SNR symbol.

How to calculate Output SNR using this online calculator? To use this online calculator for Output SNR, enter Signal Power (P_s) & Noise Power (P_n) and hit the calculate button. Here is how the Output SNR calculation can be explained with given input values -> 0.60206 = log10(8/2).

FAQ

What is Output SNR?

Output SNR is defined as the ratio of signal power to noise power, often expressed in decibels. A ratio higher than 1:1 indicates more signal than noise and is represented as SNR = log10(P_s/P_n) or Signal to Noise Ratio = log10(Signal Power/Noise Power). Signal Power at refers to the amount of energy present in the entire message signal & Noise power is the power generated by a random electromagnetic process. Interfering and unwanted power in an electrical device or system.

How to calculate Output SNR?

Output SNR is defined as the ratio of signal power to noise power, often expressed in decibels. A ratio higher than 1:1 indicates more signal than noise is calculated using Signal to Noise Ratio = log10(Signal Power/Noise Power). To calculate Output SNR, you need Signal Power (P_s) & Noise Power (P_n). With our tool, you need to enter the respective value for Signal Power & Noise Power and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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