Minimum Detectable Signal Calculator
The Minimum detectable signal (MDS) is the minimum power level that can be processed by a receiver to provide a relevant output. It is also known as the noise floor of the system. It can also be defined as the input signal power required to give a particular SNR at the output.
Calculate the Minimum Detectable Signal at the Receiver
What is the minimum detectable signal?
The minimum detectable signal (MDS) is the minimum signal power level over the background noise that can be detected & processed by a receiver/detector to provide the required output. For proper detection, the signal power level should be more than the noise floor or background noise.
How to calculate minimum detectable signal?
The following formula is used to calculate the minimum detectable signal.
Where,
MDS = Minimum Detectable Signal in dBm
T = Temperature in Kelvin
k = Boltzmann's constant (−228 dBW/(K·Hz))
Noise Figure in dB
Bandwidth in Hz/MHz/GHz
Example:
Bandwidth = 12000 Hz
Noise Figure = 13.8 dB
Minimum Deteactable Signal = -119.4082 dBm
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