Home › Forums › SYSTEM › Problem with PPM Decoder in FSO system. › Reply To: Problem with PPM Decoder in FSO system.
Hi Jake,
1) I get a BER of 0 and Q factor of 6.732e11, which makes sense. By changing the BER Analyzer to a Measured algorithm. This will give more accurate results since in your project you are reproducing the bit sequence at the output so the eye diagram has no source of noise.
2) The filters are usually defaulted to filter out 0.75*Symbol rate as the cutoff frequency. I was playing with it and then decided to just work with the bit rate. I don’t think any other components are using the information stored in Symbol rate, so it should not matter what it is set to.
3)I simply used a a time domain visualizer and markers to see how much delay the signal was experiencing. You could also try the clock recovery component.
Regards
Categories
- All
-
Knowledge
Contains a detailed Q&A knowledge base. -
General
All non-technical questions. -
System
Optical system design and analysis. -
Instrument
Communicate and control different kinds of instruments. -
SPICE
Opto-electronic circuit design. -
FDTD
Finite-Difference Time-Domain simulation. -
BPM
Beam Propagation Method analysis and design. -
Grating
Fiber optic grating simulation. -
Fiber
Optical fiber design and characterization. -
Exchange
Users can exchange design files.
(Matlab, C++, etc.)