Enter the total signal power and the total bandwidth into the Power Spectral Density Calculator. The calculator will evaluate and display the Power Spectral Density.

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## Power Spectral Density Formula

The following formula is used to calculate the Power Spectral Density.

**PSD = P / BW**

- Where PSD is the Power Spectral Density ( )
- P is the total signal power
- BW is the total bandwidth

## How to Calculate Power Spectral Density?

The following example problems outline how to calculate Power Spectral Density.

Example Problem #1:

- First, determine the total signal power .
- The total signal power is given as: 40.

- Next, determine the total bandwidth .
- The total bandwidth is provided as: 10.

- Finally, calculate the Power Spectral Density using the equation above:

PSD = P / BW

The values given above are inserted into the equation below:

PSD = 40 / 10 = (4 )

Example Problem #2:** **

For this problem, the variables needed are provided below:

total signal power = 75

total bandwidth = 20

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.

PSD = P / BW** = ?**