DecimationLevel

bands

bands	Description	Example
Required: True Type: list[mt_metadata.common.band.Band] Units: None	List of bands	[]

channel_weight_specs

channel_weight_specs	Description	Example
Required: True Type: typing.List[mt_metadata.features.we ights.channel_weight_spec.ChannelWe Units: None	List of weighting schemes to use for TF processing for each output channel	[]

input_channels

input_channels	Description	Example
Required: True Type: list[str] Units: None	list of input channels (sources)	hx, hy

output_channels

output_channels	Description	Example
Required: True Type: list[str] Units: None	list of output channels (responses)	ex, ey, hz

reference_channels

reference_channels	Description	Example
Required: True Type: list[str] Units: None	list of reference channels (remote sources)	hx, hy

save_fcs

save_fcs	Description	Example
Required: True Type: <class ‘bool’> Units: None	Whether the Fourier coefficients are saved [True] or not [False].	True

save_fcs_type

save_fcs_type	Description	Example
Required: False Type: mt_metadata.processing.aurora.decim ation_level.SaveFcsTypeEnum | None Units: None	Format to use for fc storage	h5

decimation.level

decimation.level	Description	Example
Required: True Type: int | None Units: None	Decimation level, must be a non-negative integer starting at 0	0

decimation.factor

decimation.factor	Description	Example
Required: True Type: <class ‘float’> Units: None	Decimation factor between parent sample rate and decimated time series sample rate.	4.0

decimation.method

decimation.method	Description	Example
Required: True Type: <enum ‘MethodEnum’> Units:	Type of decimation	default

decimation.sample_rate

decimation.sample_rate	Description	Example
Required: True Type: <class ‘float’> Units: samples per second	Sample rate of the decimation level data (after decimation).	256

decimation.anti_alias_filter

decimation.anti_alias_filter	Description	Example
Required: True Type: str | None Units: None	Type of anti alias filter for decimation.	default

estimator.engine

estimator.engine	Description	Example
Required: True Type: <enum ‘EngineEnum’> Units: None	The transfer function estimator engine	RME_RR

estimator.estimate_per_channel

estimator.estimate_per_channel	Description	Example
Required: True Type: <class ‘bool’> Units: None	Estimate per channel	True

regression.minimum_cycles

regression.minimum_cycles	Description	Example
Required: True Type: <class ‘int’> Units: None	Minimum number of cycles in the regression	10

regression.max_iterations

regression.max_iterations	Description	Example
Required: True Type: <class ‘int’> Units: None	Max iterations of the regression	10

regression.max_redescending_iterations

regression.max_redescending_iterations	Description	Example
Required: True Type: <class ‘int’> Units: None	Max redescending iterations of the regression	2

regression.r0

regression.r0	Description	Example
Required: True Type: <class ‘float’> Units: None	The number of standard deviations where the influence function changes from linear to quadratic	1.4

regression.u0

regression.u0	Description	Example
Required: True Type: <class ‘float’> Units: None	Control for redescending Huber regression weights.	2.8

regression.tolerance

regression.tolerance	Description	Example
Required: True Type: <class ‘float’> Units: None	Control for convergence of RME algorithm. Lower means more iterations	0.005

regression.verbosity

regression.verbosity	Description	Example
Required: True Type: <class ‘int’> Units: None	Control for logging messages during regression – Higher means more messages	1

stft.harmonic_indices

stft.harmonic_indices	Description	Example
Required: True Type: typing.Union[int, list[int], NoneType] Units: None	List of harmonics indices kept, if all use -1	[0, 4, 8]

stft.method

stft.method	Description	Example
Required: True Type: <enum ‘MethodEnum’> Units: None	Fourier transform method	fft

stft.min_num_stft_windows

stft.min_num_stft_windows	Description	Example
Required: True Type: <class ‘int’> Units: None	How many FFT windows must be available for the time series to valid for STFT.	4

stft.per_window_detrend_type

stft.per_window_detrend_type	Description	Example
Required: True Type: <enum ‘PerWindowDetrendTypeEnum’> Units: None	Additional detrending applied per window. Not available for standard scipy spectrogram – placholder for ARMA prewhitening.	linear

stft.pre_fft_detrend_type

stft.pre_fft_detrend_type	Description	Example
Required: True Type: <enum ‘PreFftDetrendTypeEnum’> Units: None	Pre FFT detrend method to be applied	linear

stft.prewhitening_type

stft.prewhitening_type	Description	Example
Required: True Type: <enum ‘PrewhiteningTypeEnum’> Units: None	Prewhitening method to be applied	first difference

stft.recoloring

stft.recoloring	Description	Example
Required: True Type: <class ‘bool’> Units: None	Whether the data are recolored [True] or not [False].	True

stft.window.num_samples

stft.window.num_samples	Description	Example
Required: True Type: <class ‘int’> Units: samples	Number of samples in a single window	256

stft.window.overlap

stft.window.overlap	Description	Example
Required: True Type: <class ‘int’> Units: samples	Number of samples overlapped by adjacent windows	32

stft.window.type

stft.window.type	Description	Example
Required: True Type: <enum ‘TypeEnum’> Units: None	name of the window type	hamming

stft.window.clock_zero_type

stft.window.clock_zero_type	Description	Example
Required: True Type: <enum ‘ClockZeroTypeEnum’> Units: None	how the clock-zero is specified	user specified

stft.window.clock_zero

stft.window.clock_zero	Description	Example
Required: False Type: mt_metadata.common.mttime.MTime | str | float | int | Units: None	Start date and time of the first data window	2020-02- 01T09:23:45.453 670+00:00

stft.window.normalized

stft.window.normalized	Description	Example
Required: True Type: <class ‘bool’> Units: None	True if the window shall be normalized so the sum of the coefficients is 1	False

stft.window.additional_args

stft.window.additional_args	Description	Example
Required: False Type: <class ‘dict’> Units: None	Additional arguments for the window function	{‘param’: ‘value’}