Timeline for What could Perseverance listening to Ingenuity reveal?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| May 10, 2021 at 15:45 | vote | accept | Camille Goudeseune | ||
| May 30, 2022 at 21:21 | |||||
| May 10, 2021 at 1:05 | comment | added | uhoh | @CamilleGoudeseune Oh and edit looks good to me, thanks! | |
| May 10, 2021 at 1:04 | comment | added | uhoh | @CamilleGoudeseune Yes I think it can be said that way. This is post-analysis done later. For an estimate of $\sqrt{K_s/\rho}$ you compare the change in line-of-sight distance $\Delta s$ over some time $\Delta t$ and compare it to the integral frequency shift $\Delta f \Delta t$ which is the total number of missing or extra cycles. So if you sustain 2 m/s for 20 seconds with $c=$ 240 m/s you should have accumulated a net missing or extra 14 cycles of the 84 Hz signal; perhaps not so incredibly useful under normal circumstances unless including wind speed helps to check those sensors as well. | |
| May 9, 2021 at 22:03 | history | edited | Camille Goudeseune | CC BY-SA 4.0 |
clarify $f$ (I hope that's right)
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| May 9, 2021 at 19:58 | comment | added | Camille Goudeseune | So the short version is: measure with exquisite accuracy how, along the path between rotors and mic, average $c$ changed from moment to moment, which then hints at variations in the atmosphere's speed, temperature, and pressure (but not knowing which). Is that right? | |
| May 9, 2021 at 2:24 | history | edited | uhoh | CC BY-SA 4.0 |
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| May 9, 2021 at 1:40 | history | edited | uhoh | CC BY-SA 4.0 |
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| May 9, 2021 at 1:33 | history | edited | uhoh | CC BY-SA 4.0 |
added 572 characters in body
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| May 9, 2021 at 1:23 | history | answered | uhoh | CC BY-SA 4.0 |