Timeline for How to obtain the real and imaginary signal parts using Arduino FFT
Current License: CC BY-SA 4.0
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| S Feb 13, 2022 at 17:22 | history | suggested | RowanP | CC BY-SA 4.0 |
Tried to improve question title.
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| Feb 13, 2022 at 0:31 | review | Suggested edits | |||
| S Feb 13, 2022 at 17:22 | |||||
| Feb 12, 2022 at 18:00 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
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| Jan 24, 2020 at 15:28 | history | edited | VE7JRO |
edited tags
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| Jan 1, 2020 at 18:11 | comment | added | Peter Paul Kiefer |
@PeterSmith Good hint, and it should return a imaginary part too! The Compute-Method takes two double pointers one to the real part samples and one to an array of 0.0 initialized imaginary part samples. Both arrays must have the same size. After computation the imaginary array is filled with the imaginary parts of the FFT. The library also provides examples.
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| Jan 1, 2020 at 17:39 | answer | added | Majenko | timeline score: 1 | |
| Jan 1, 2020 at 16:55 | history | migrated | from electronics.stackexchange.com (revisions) | ||
| Jan 1, 2020 at 16:07 | comment | added | Peter Smith | There are some implementations around such as arduinolibraries.info/libraries/arduino-fft - whether it extracts the real and imaginary parts I do not know. | |
| Jan 1, 2020 at 16:04 | comment | added | JRE | Probably not. The Arduino isn't exactly the tool of choice for digital signal processing. All you need is any FFT implementation in C, and you should be able to port it to the Arduino pretty easily. The problem is getting a steady, fast sampling rate on the Arduino - that, and processing it fast enough on a slow, general purpose processor. | |
| Jan 1, 2020 at 16:00 | history | asked | ASWIN VENU | CC BY-SA 4.0 |