Patent ID: 7535973

Claim:
A method of correcting at least one parameter to be corrected of a complex digital signal (s er , d) comprising the following steps: a decomposition of the signal into two signals, envelope (e er ) and phase (p er ) using decomposition device, a determination of a corrector c to be applied to the parameter of the envelope, said corrector being obtained by searching, among predetermined values, for the value of the corrector corresponding to a minimum of an out-of-band noise power (N h ) of an output signal of a digital signal processing chain comprising a correction as a function of said corrector, the complex digital signal (s er , d) being the only necessary signal to determine the corrector c, the step of determination of the corrector c comprising the following substeps: a successive application of various predetermined values {C 1 to C M } of the corrector c to the envelope e er to generate a corrected envelope e′ er , a multiplication of the corrected envelope e′ er and of the phase P er for each value {C 1 to C M } of the corrector c, a transposition into a frequency domain of signals thus obtained for each of the predetermined values {C 1 to C M } of the corrector c, comparing the out-of-band noise powers N h for each of the predetermined values {C 1 to C M } of the corrector c, the value adopted for corrector c being that corresponding to a smallest out-of-band noise power.