| Name |
Today's Update |
Plans for Tomorrow |
| Alex M |
I wasn't available for most of the day, but I jumped onto the meeting to help Alex P continue looking for the problem with the effective volumes. Amy asked us to investigate the phase responses coming out of XF. I posted the plots in the drop box--see the text below this table for more details. |
I think we need to try a run of XF with variable grid spacings so that we can put in the same individuals with increasingly small grid spacings and get a clear view of how that affects the gain/phase vs frequency. |
| Alex P |
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| Eliot |
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| Leo |
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| Evelyn |
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| Ryan |
Continued working on the Roulette algorithm all the function definitions, constants and most of the main function are complete aside from parts that pertain to the genes of the paperclip antennas. |
If all goes well, I hope to find the gene parameters used in the paperclip tournament algorithm and then implement those into the work I did today and finish the roulette algorithm completely. If I complete that I plan on testing to make sure everything is working properly before merging onto the main development branch. |
For the phase vs frequency plots, see this link: https://www.dropbox.com/home/GP_Antennas/Updates/Phase%20vs%20Frequency%20plots .The plots show the average phase vs frequency for all 10 individuals in one generation of a run. The names of the plot files correspond to which run they come from.The runs which were examined were: XF_Data_Test, Grid_Space_Test, and Ryan_test_run3. They were chosen because they provide use with different antenna, grid spacing, and effective volume data.
The plot for XF_Data_Test is named p_vs_f_XFDT.png. The plot for Grid_Space_Test is named p_vs_f_GST.png. The plot for Ryan_test_run3 is named p_vs_f_Rtr3.png.
- XF_Data_Test a grid spacing of 0.1 cm. The antennas in generation 0 were large, but it evolved to make small antennas in generation 5, which is what the phase plot comes from. Individuals 7 and 10 had effective volumes of 0, while the remaining effective volumes were large.
- Grid_Space_Test used a grid spacing of 0.01 cm. The antennas in generation 0 were small, which is where the phase plot comes from. None of the individuals had 0 effective volume, but overall the effective volumes were lower than in the similarly sized antennas in generation 5 of XF_Data_Test.
- Ryan_test_run3 used a grid spacing of 0.1 cm. The antennas in generation 0, which is where the plot is from, were large and all had similar effective volumes to the actual bicone.
There are two things we noticed about these plots. First, they seem very noisy at low frequencies--they don't have much of a nice pattern here (actually, XF_Data_Test shows generally high phases at low frequencies that decrease with frequency up until around 200 MHz). The other detail we noticed is the periodic behavior of the average phase once it settles down beyond low frequencies. We don't know why this would occur. It's also worth noting that the phase diverge seemingly randomly at the last frequency--we assumed this was similar to how the phase is always wild at theta = 0 and theta = 360 in the .uan files. |