| 摘要 |
<p>The signal strength of a received signal in a communication system is estimated by applying the received signal to a signal processor (52), which reproduces a desired signal. An energy calculator (54) calculates the energy of the desired signal, while an energy calculator (56) calculates the energy of the received signal. Both calculated energies are applied to a signal strength calculator (58), which estimates the signal strength. The measured signal strength can be computed by dividing the energy of the desired signal with the energy of the noise. The signal strength of the desired signal can be estimated: (a) as the maximum likelihood estimate of the actual signal strength; (b) based on the expected value of the energy of the desired signal; or (c) based on the expected value of the energy of the desired signal and accounting for a predetermined bias.</p> |
