If I use Spectral Analysis block for accelerometer data it generates 33 features automatically. How can I pass select features (for example RMS only for all 3 axes) to a Neural Network block? Also, is there any way to generate select features only?
@naveen The 33 features are determined by:
- RMS (1 feature)
- No. of FFT peaks (times 2, one for location and one for peak height)
- Power edges (1 for every bucket, e.g. 5 values here gets you 4 buckets)
Times number of axes (3 in your case).
If you set no. of fft peaks to 0 and power edges to 0.1 you’ll just have 3 features (RMS only).
You can also use a Flatten block if you’re just interested in general data about the signal.
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