Let's think about the following auto/cross correlator: http://i.imgur.com/Fy5hdVj.png I've placed `divide` because I need to normalize the correlation result.
If we place `null source`, or `constant source with value of zero` right before the `pad source`, the simplified form of the correlator becomes 0 divided by 0. I've placed `time sink` right after the `pad sink` then, I can see the line hit the infinity. With a simplified flow graph: http://i.imgur.com/Msx9EQj.png Back to the my correlator, how can I handle such `infinity` value coming into the next block? My guess is that if a source block is a type of float, then `infinity` might have a maximum value of float. So, I think I can reject `infinity` value with `if (in[i] > threshold)`, where `threshold` is big enough, for correlator it is fine to have a value just larger than one. Do you think what I guess is right? Or can some boost numeric types, or PMT help somehow to deal with it? In addition, not important. In pages http://en.cppreference.com/w/cpp/types/numeric_limits/infinity and http://en.cppreference.com/w/cpp/numeric/math/INFINITY, non floating point numeric types can't handle infinity. Is it also applied to GNU Radio? Regards, Jeon.
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