发明名称 |
MEASUREMENT OF NOISE IMPAIRMENTS |
摘要 |
A method for determining the composite triple beat (CTB), composite second order beat (CSO) and/or SNOW noise of cable television signal is obtained by digitizing a quiet line and determining the Fourier transform of the digitized signal and measuring the energy in the frequency range corresponding to the particular impairment of being determined. Repeating this process a significant number of time to accumulate a significant number N of values for the impairment and then using the average of the accumulated intensity to define the amount of the impairment.
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申请公布号 |
WO9641484(A1) |
申请公布日期 |
1996.12.19 |
申请号 |
WO1996CA00356 |
申请日期 |
1996.06.04 |
申请人 |
THE UNIVERSITY OF BRITISH COLUMBIA |
发明人 |
WARD, RABAK, K. |
分类号 |
H04N17/00;(IPC1-7):H04N17/00 |
主分类号 |
H04N17/00 |
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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