1results about How to "Does not affect measurement" patented technology

The application discloses a kind of based on nonlinear dynamics multipath fading robustness radiation source signal characterization method, comprising: S1, receive the signal data of radiation source and carry out data preprocessing, obtain signal x (t) ;S2, calculate time delay parameter tau and embedding dimension m, and reconstruct the phase space to the signal x (t) and obtain matrix S;S3, to matrix S is carried out row direction transformation and channel elimination and obtains matrix S4, to matrix is carried out column direction transformation and logarithmic transformation and obtains reconstructed phase space matrix two-dimensional Fourier transform logarithmic spectrum Θ.The application combines the advantages of nonlinear analysis and spectral analysis, designs and constructs the phase space two-dimensional Fourier transform logarithmic frequency spectrum, by the frequency domain transformation of two-dimensional row and column direction between phase points, the characteristic analysis of nonlinear dynamic system is carried out in frequency domain, on the basis of realizing the elimination of channel influence by the frequency domain mean value between cancellation phase points, without channel estimation and channel compensation, and without affecting the measurement of radiation source fingerprint information.