Patent Document ID: 9214974
Application ID: 13984223
Patent Flag: 1

Claim One:
1. A method, implemented by a computing device, for detecting a wireless microphone signal in digital TV white space based on an augmented spectral correlation function (SCF), characterized in that the method comprises: acquiring, by the computing device, a preprocessed time-domain digital signal x[n] in a particular TV band, 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) α of the digital signal x[n]; and calculating, by the computing device and using the augmented SCF Ŝ x α (ƒ) α , 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 a result of a comparison between the statistic T p and the threshold γ.