An atomic clock research team from the National Time Service Center of the Chinese Academy of Sciences has proposed and ...

Source Arthur Pini The goal of the test is to acquire and average only those bursts with a specific amplitude. In this case, those with a nominal value of 300 millivolts (mV) peak-to-peak. This ...

Multi-level amplitude recording requires a novel reproduction method which can demodulate the signal accurately, even when the optical noise is superimposed on the signal. In this report ...

For example, in AM radio, the voltage (amplitude) of a carrier with a fixed center frequency (the station's channel) is varied (modulated) by the analog audio signal.

With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes ...