Noise Power Calculations in dB or dBm

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Output noise power is calculated using the formula No = kTsBG + kTeBG, which simplifies to No = k.(Ts+Te).B.G. When expressing this power in dB or dBm, the appropriate conversion involves using 10Log10(Value) for dB and 10Log10(P/P0) for dBm, where P0 is 1 mW. dBm specifically refers to power levels relative to 1 mW, while dB is a dimensionless ratio. To accurately represent noise power, it is essential to use dBm for clarity and standardization. Understanding these calculations is crucial for effective noise power analysis in various applications.
Kartik.Sulakh
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The ourput Noise Power is given as
No = kTsBG + kTeBG
...= k.(Ts+Te).B.G
But when it is asked in dB or dBm,
How to calculate it something like 10Log10(Value) or 20Log10(Value)
 
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dBm is a unit of power (dB referenced to 1 mW)
dB is a (dimensionless) ratio (value/reference in dB).

Hence, if you want noise power you need to use dBm.
All you need is 10log10 (P/P0) where P is the power and P0 is 1 mW.
 

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