Joined: 13 Feb 99
Spikes and Gaussians are related signal types, and if there's a Gaussian in the middle of spike RFI (drifting or frequency stable) it's pretty certain that the Gaussian is part of the same RFI.
We were already applying spike RFI zones (frequency stable) to other signal types as well. But we started finding examples of Gaussians in drifting spike RFI also; for example, this.
Software-wise, it was a bit tricky to do this. RFI removal is done separately for each signal type, and the areas of drifting spike RFI (triangles in time/frequency space) are computed on the fly for spikes. So what I did was:
©2020 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.