Detection and characterization of laser clipping within communication devices
First Claim
1. An apparatus comprising:
- an input configured to receive a communication signal from a communication network that includes at least one laser implemented therein to effectuate signaling; and
a processor configured to;
analyze spectral content of the communication signal;
generate, based on historical correlation between at least one characteristic corresponding to a fundamental frequency band of the communication signal and at least one characteristic corresponding to at least one harmonic of the communication signal when the at least one characteristic corresponding to the fundamental frequency band of the communication signal is detected, a histogram corresponding to a plurality of clipping events of the at least one laser;
identify clipping of the at least one laser based on the histogram and based on current correlation between the at least one characteristic corresponding to the fundamental frequency band of the communication signal and the at least one characteristic corresponding to the at least one harmonic of the communication signal and also based on spectral content analysis of the communication signal; and
analyze the at least one characteristic corresponding to the at least one harmonic of the communication signal when detecting the at least one characteristic corresponding to the fundamental frequency band of the communication signal to determine at least one of the historical correlation or the current correlation.
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Abstract
Detection and characterization of laser clipping within communication devices. Identification of one or more harmonics associated with a fundamental frequency by which signaling is effectuated within the communication system for laser clipping identification. Appropriate spectral signal analysis is made to identify the presence of characteristic(s) (e.g., energy, amplitude, phase, and/or other characteristic(s)), if any, at one or more harmonic frequencies within a received signal. Appropriate time correlation is performed to distinguish whether or not characteristic(s) associated with at one or more of these harmonic bands is a result of laser clipping or from some other source (e.g., such as other signals within a communication system that happened to reside at those respective harmonic bands). Such appropriate identified correlation between characteristic(s) corresponding to a fundamental frequency band of the communication signal and characteristic(s) corresponding to one or more harmonics (e.g., of that fundamental frequency band) indicates laser clipping.
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Citations
20 Claims
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1. An apparatus comprising:
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an input configured to receive a communication signal from a communication network that includes at least one laser implemented therein to effectuate signaling; and a processor configured to; analyze spectral content of the communication signal; generate, based on historical correlation between at least one characteristic corresponding to a fundamental frequency band of the communication signal and at least one characteristic corresponding to at least one harmonic of the communication signal when the at least one characteristic corresponding to the fundamental frequency band of the communication signal is detected, a histogram corresponding to a plurality of clipping events of the at least one laser; identify clipping of the at least one laser based on the histogram and based on current correlation between the at least one characteristic corresponding to the fundamental frequency band of the communication signal and the at least one characteristic corresponding to the at least one harmonic of the communication signal and also based on spectral content analysis of the communication signal; and analyze the at least one characteristic corresponding to the at least one harmonic of the communication signal when detecting the at least one characteristic corresponding to the fundamental frequency band of the communication signal to determine at least one of the historical correlation or the current correlation. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus comprising:
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an input configured to receive a communication signal from a communication network that includes at least one laser implemented therein to effectuate signaling; and a processor configured to; analyze spectral content of the communication signal; and identify clipping of the at least one laser based on correlation between at least one characteristic corresponding to a fundamental frequency band of the communication signal and at least one characteristic corresponding to at least one harmonic of the communication signal and also based on spectral content analysis of the communication signal. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A method for execution by a communication device, the method comprising:
- via an input of the communication device, receiving a communication signal from a communication network that includes at least one laser implemented therein to effectuate signaling;
analyzing spectral content of the communication signal; and based on correlation between at least one characteristic corresponding to a fundamental frequency band of the communication signal and at least one characteristic corresponding to at least one harmonic of the communication signal and also based on spectral content analysis of the communication signal, identifying clipping of the at least one laser. - View Dependent Claims (15, 16, 17, 18, 19, 20)
- via an input of the communication device, receiving a communication signal from a communication network that includes at least one laser implemented therein to effectuate signaling;
Specification