A Dual-Eigen Spectrum Sensing Method Based on Maximum Eigenvalue and Principal Eigenvector
A technology of main eigenvectors and maximum eigenvalues, applied in the field of spectrum sensing, can solve problems such as limiting spectrum sensing performance and achieve high spectrum sensing performance
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[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0018] A dual-eigenspectrum sensing method based on the maximum eigenvalue and main eigenvector proposed by the present invention, its processing process is as follows: first, calculate the maximum eigenvalue and its corresponding , and calculate the maximum eigenvalue and its corresponding main eigenvector of the covariance matrix of the received signals in multiple consecutive sensing time slots prior to the current sensing time slot in time; secondly, according to The maximum eigenvalue of the covariance matrix of the received signal and its corresponding main eigenvector in multiple consecutive sensing time slots prior to the current sensing time slot in time, and the main eigenvector of the covariance matrix of the authorized user signal is obtained and the estimated value of the maximum eigenvalue of the covariance matrix of Gaussian whi...
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