Patent Document ID: 20130308730
Application ID: 13984223
Patent Flag: 0

Claim One:
1. A method for detecting a wireless microphone signal based on an augmented spectral correlation function (SCF), characterized in that the method comprises: acquiring a preprocessed time-domain digital signal x[n], calculating a SCF Ŝ x α (ƒ) of the digital signal x[n], calculating a conjugate SCF Ŝ x α (ƒ) c of the digital signal x[n] , and calculating the augmented SCF Ŝ x α (ƒ) a of the digital signal x[n]; and calculating a statistic T p of the digital signal x[n], simulating or calculating a threshold γ with a predetermined method, and determining whether the acquired digital signal x[n] is a wireless microphone signal based on result of comparison between the statistic T p and the threshold γ.