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3 Commits

Author SHA1 Message Date
Andy Piper
d545f392fb AP_HAL: set base type of FrequencyPeak to uint8_t 2020-08-05 17:20:03 +10:00
Andy Piper
e2ef0bd36e AP_HAL: collect data for three largest peaks 
new dsp peak detection algorithm
add DSP sketch with frequency ascii art
tool to generate gyro data frames from batch sampled DF logs
add generated data from real Y6B flight
allow fft_start() to use ObjectBuffer<float> for lock-free access
allow ObjectBuffer to be resized
 2020-05-24 07:43:34 +10:00
Andy Piper
f4a99a1589 AP_HAL: hardware abstraction for FFT. 
control inclusion of FFT based on HAL_WITH_DSP and HAL_GYROFFT_ENABLED. target appropriate ARM cpus
define hanning window and quinn's estimator
start/analyse version of FFT to support threading
allocate memory in a specific region
calculate frequency and noise bandwidth of two noisiest peaks
control inclusion of DSP based on board size
 2020-02-22 11:15:37 +11:00