The mean signal levels
of the different paths also must be somewhat comparable.
A voltage-controlled attenuator is used to select the different signal levels
required for the QAM implementation.
IM3 = third-order intermodulation signal level
The current value of the signal level
(dB) is noted.
It is well known that the diffraction of RF signal cannot be measured directly since it is combined with other propagation mechanisms that contribute to RF signal level
through the interaction with propagation environment's elements.
Another issue is that different types of glove material and thicknesses lead to different signal levels
. Hence, simply boosting the sensitivity will not address the issue of the multitude of glove types.
In this paper, we proposed signal level
matrix, SLM, to improve the accuracy and stability of active RFID indoor positioning system.
As we defined in previous section, signal level
is proportional to TIA gain--[R.sub.f].
At a distance greater than 22 m the simulation tool predicts -92 dBm signal level
, which means that the receiver doesn't fix this signal.
When it is raining, signal level
fluctuation (known as scintillation) can change together with rain attenuation affecting signal level
13, the maximum signal levels
of the B-PMA and the B-PSA appear alternately; the maximum signal level
of the B-PSA is detected near the minimum signal level
of the B-PMA, and the maximum signal level
of the B-PMA is detected near the minimum signal level
of the B-PSA.
The signal level
is found to increase rapidly as soon as the voltage is applied, even if the voltage is set to 0 V.