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
Where,
MDS = Minimum Detectable Signal
T = Temperature in Kelvin
k = Boltzmann's constant (−228 dBW/(K·Hz))
If the system Temperature is 290 Kelvin then, effective noise power i.e
10*Log10(kT/1mW) = -174 dBm*
*Note = We have used -174 dBm as effective noise power.
Example:
Bandwidth = 12000 Hz
Noise Figure = 13.8 dB
Minimum Deteactable Signal = -119.4082 dBm
