发明名称 |
NON-INTRUSIVE SIGNAL QUALITY ASSESSMENT |
摘要 |
<p>A non-intrusive signal quality assessment apparatus includes a feature vector calculator that determines parameters representing frames of a signal and extracts a collection of per-frame feature vectors (φ;(n)) representing structural information of the signal from the parameters. A frame selector preferably selects only frames (Ω/with a feature vector (φ;(n)) lying within a predetermined multi-dimensional window (Θ). Means determine a global feature set (ψ) over the collection of feature vectors (φ;(n)) from statistical moments of selected feature vector components ((1^,02, . . . O11). A quality predictor predicts a signal quality measure (Qj from the global feature set (ψ)).</p> |
申请公布号 |
EP1980089(A1) |
申请公布日期 |
2008.10.15 |
申请号 |
EP20070709296 |
申请日期 |
2007.01.30 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
BRUHN, STEFAN;KLEIJN, BASTIAAN;GRANCHAROV, VOLODYA |
分类号 |
H04M3/22;G10L19/00;H04B3/46 |
主分类号 |
H04M3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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