DIGITAL RADIO COMMUNICATION EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide digital radio communication equipment equipped with a propagation path fluctuation estimating circuit for preventing deterioration in frame rate efficiency by using a preamble signal instead of a pilot signal. SOLUTION: This digital radio communication equipment for communication by using a radio frame constituted of a preamble signal for synchronism capture and a data signal stream added with a preamble signal for data identification is provided with a circuit for separating the preamble signal for data identification from the received data signal stream, a circuit for generating the same reference signal as the preamble signal for data identification, a propagation path fluctuation estimating circuit for comparing a signal to be outputted from the preamble signal separating circuit with a signal to be outputted from the reference signal generating circuit, and for calculating a propagation path fluctuation estimate, and a propagation path deviation compensating circuit for compensating the propagation path deviation of the data signal by using the propagation path fluctuation estimate.