Method for equalization of complementary carriers in an am compatible digital audio broadcast system

Claims a to compatible end of the balance method in amplitude modulation digital broadcasting signal, the method comprises a spectrum 1st amplitude modulation radiofrequency signal, the amplitude modulation radiofrequency signal which is used for program signal modulation the carrier 1st), at a spectrum 1st bandwidth the carrier frequency signals of multiple groups of digital modulations, carrier frequency signal of 1st group of digital modulations comprising a rack signal, and a to 1st spectrum in a range, 2nd and carrier frequency signal of 3rd group of digital modulations comprising a non-supplementary signal, and of the outer 1st spectrum. The method comprises the following the step: Generating signal 1st, comprising a represented compatible with the amplitude modulation digital broadcasting signal in-phase component; Generating signal 2nd, comprising a represented compatible with the amplitude modulation digital broadcasting signal quadrature component; For 1st and 2nd signal and true component and modules input device, and is 1st and fast fourier transform of signal 2nd, signal according to generate on behalf for frequency range of data; theIs multiplied by a balance vector through the signal for a plurality of holes, processes the signal of the plurality of holes, wherein the vector comprises multiple equalizer, coefficientsAnd connected to the non-supplementary signals' vectors and insertion, updating equalizer the double-face of the rack signals. The invention further - comprising using the method for operation of radiofrequency receiver, executing the method and device, and using the method for radiofrequency receiver.