发明名称 |
Apparatus and method for robust BPSK/QPSK blind modulation classification against errors in satellite control system |
摘要 |
Provided are an apparatus and method for robust Binary Phase Shift Keying/Quadrature Phase Shift Keying (BPSK/QPSK) blind modulation classification. The apparatus includes first and second likelihood value calculators for calculating a likelihood value of a received baseband signal each for of BPSK and QPSK modulation modes. A maximum setting unit derives a maximum value of the likelihood values or ith likelihood ratios calculated by the first and second likelihood value calculators. A flag is set for the maximum value to “1” and a flag for the remaining value is set to “0”. First and second flag combining units combine the flags for the modulation modes. A modulation mode flag setting unit selects a maximum value from the flags combined by the first and second flag combining units.
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申请公布号 |
US7697639(B2) |
申请公布日期 |
2010.04.13 |
申请号 |
US20060442078 |
申请日期 |
2006.05.25 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM IL-HAN;RYU JOON-GYU;KIM HO-KYOM;OH DEOCK-GIL |
分类号 |
H03D3/22 |
主分类号 |
H03D3/22 |
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