以基於循環矩陣之辛轉換建構同調脈衝位置調變式量子密碼及其效能分析
碩士 === 國立清華大學 === 電機工程學系 === 99 === In this thesis, we propose a systematic method to generate a set of unitary matrices that is corresponding to a generator of the CPPM signals. A unitary matrix composed of the eigenvectors of a circulant matrix is considered as the seed matrix. A set of unitary ma...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | en_US |
| Published: |
2011
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/09213669698990816931 |
| Summary: | 碩士 === 國立清華大學 === 電機工程學系 === 99 === In this thesis, we propose a systematic method to generate a set of unitary
matrices that is corresponding to a generator of the CPPM signals. A unitary
matrix composed of the eigenvectors of a circulant matrix is considered as the
seed matrix. A set of unitary matrices can be obtained by applying column
rightward and row downward shifting to the seed matrix. The performance
of the legitimate receiver and the eavesdropper is compared when the length
of signal is 4. Besides, the optical circuit of the proposed generator of the
CPPM signals is implemented by the combinations of beam splitters, phase
shifters and mirrors.
|
|---|