发明名称 |
METHOD AND APPARATUS FOR SPECTROM ANALYSIS |
摘要 |
Provided is a signal detector and method for spectrum analysis and for measuring power of one or more channels of an electrical or optical signal. Each channel may carry a unique modulation tone. A DSP (digital-signal processor) performs DFTs (discrete Fourier transforms) on the signal. Frequency bands of interest which contain a tone that requires detection are processed. Higher layers of coherent integrations are performed on bands whi ch have not detected a tone with a resolution that is suitable for power measurement. The higher layers of coherent integrations are performed by collecting additional data and performing a coherent integration. Further higher layer coherent integrations are performed until all modulation tones have been detected with a suitable resolution or up to a maximum detection latency. Processing only bands of interest and performing higher layer coherent integrations on only those bands of interest requiring a finer resolution provides a variable detection latency, efficient use of memory an d computations, and real-time power measurements.
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申请公布号 |
CA2464251(C) |
申请公布日期 |
2009.06.16 |
申请号 |
CA20022464251 |
申请日期 |
2002.06.10 |
申请人 |
TROPIC NETWORKS INC. |
发明人 |
REMEDIOS, DERRICK;WAN, PING WAI;CHIMFWEMBRE, PATRICK CHILUFYA;JIN, DONGXING |
分类号 |
G01R23/16 |
主分类号 |
G01R23/16 |
代理机构 |
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地址 |
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