Wireless communication terminal capable of correctly specifying position of burst and having small frequency error of recovered carrier

Abstract

A power calculator calculates the power of an input signal in accordance with a component of an input received signal. A comparator asserts an unmodulated signal detection signal when the power calculated by the power calculator exceeds a prescribed threshold. A maximum value detector detects the maximum power of the input received signal in accordance with the assertion of the unmodulated signal detection signal and generates non-modulated signal position instruction information with a maximum value detection signal, and a frequency error calculator calculates an error of a carrier frequency on the basis of the received signal corresponding to the maximum power. The frequency error is calculated only with a non-modulated signal, whereby the frequency error can be correctly calculated and the non-modulated signal position can also be correctly detected.

Dependencies are inferred from the claim text.