A method for synchronizing a measurement signal with a reference signal and corresponding measuring system

摘要

A method for synchronizing a measuring signal (χ_Dut) with a reference signal (χ_Ref) with the following process steps:– Determining (24; 48) of a coarse temporal displacement (δ ^ τ) and / or of a coarse phase offset (φ ^) of the measuring signal (χ_Dut) with respect to the reference signal (χ_Ref),– Compensating (25; 49) of the coarse temporal displacement (δ ^ τ) and / or of the coarse phase offset (φ ^) in the measurement signal (χ_Dut),– subsequent common estimating (26; 50) of a fine temporal displacement (delta t), a fine frequency offset (δf), a fine phase offset (φ) and the deviation of the amplification factor (gain) of the measured signal with respect to the reference signal with a maximum - likelihood - a method and– Compensating (27; 51) of the fine temporal displacement (delta t), of the fine frequency offset (δf), of the fine phase offset (φ) and the deviation of the amplification factor (gain) in the measurement signal (χ_Dut),wherein the determination of (24; 48) of the coarse temporal displacement (δ ^ τ) and / or of the coarse phase offset (φ ^) the measurement signal (χ_Dut) , and the reference signal (χ_Ref) in each case of a fourier transformation (34, 35; 102, 103) are subjected to fourier transform signals is conjugated complex multiplied..