Detection Methods: Heterodyne, Differential, Normal & Homodyne

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SUMMARY

The discussion focuses on the differences between four types of detection methods: heterodyne, differential, normal, and homodyne. Heterodyne detection requires capturing two cycles of change to determine the signal, while differential detection has specific timing requirements that need clarification. The conversation also highlights the distinction in terminology between optical and electrical homodyne/heterodyne detection. Understanding these differences is crucial for applications in signal processing and communications.

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  • Understanding of signal processing concepts
  • Familiarity with optical and electrical detection methods
  • Knowledge of timing requirements in signal detection
  • Basic principles of modulation techniques
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  • Research "Heterodyne detection techniques in optical communications"
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Engineers, researchers, and students in the fields of signal processing, telecommunications, and optical engineering will benefit from this discussion.

watertreader
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Hi,

Just a query...

what is the differences between this types of detection and their usage?
a) heterodyne
b) differential
c) normal
d) homodyne?
 
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We don't do homework assignments.
 
Just go to Wikipedia or Google and look them up.

eg
http://en.wikipedia.org/wiki/Homodyne

Even your textbook from school will have nice diagrams and a carefully written explanation.
 
not a homework assignment...

actually i am more concerned with the timing detection requirement of differential detection... for a heterodyne detection, we need to capture 2 cycle of change to determine the heterodyne signal..what about differential?

also for homodyne and heterodyne detection... heard there is a difference in the terminology between optical and electrical homodyne/heterodyne..what/why the diff?
 

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