ezmsg.sigproc.decimate#

Classes

class ChebyForDecimate(*args, settings=None, **kwargs)[source]#

Bases: BaseTransformerUnit[ChebyshevFilterSettings, AxisArray, AxisArray, ChebyForDecimateTransformer]

Parameters:: settings (Settings | None)

SETTINGS#: alias of ChebyshevFilterSettings

class ChebyForDecimateTransformer(*args, **kwargs)[source]#

Bases: ChebyshevFilterTransformer[tuple[ndarray[tuple[Any, …], dtype[_ScalarT]], ndarray[tuple[Any, …], dtype[_ScalarT]]] | ndarray[tuple[Any, …], dtype[_ScalarT]]]

A ChebyshevFilterTransformer with a design filter method that additionally accepts a target sampling rate,: and if the target rate cannot be achieved it returns None, else it returns the filter coefficients.

get_design_function()[source]#

Return a function that takes sampling frequency and returns filter coefficients.

Return type:: Callable[[float], tuple[ndarray[tuple[Any, …], dtype[_ScalarT]], ndarray[tuple[Any, …], dtype[_ScalarT]]] | ndarray[tuple[Any, …], dtype[_ScalarT]] | None]

class Decimate(*args, settings=None, **kwargs)[source]#

Bases: Collection

A Collection chaining a Filter node configured as a lowpass Chebyshev filter and a Downsample node.

Parameters:: settings (Settings | None)

SETTINGS#: alias of DownsampleSettings

INPUT_SIGNAL = InputStream:unlocated[<class 'ezmsg.util.messages.axisarray.AxisArray'>]()#

OUTPUT_SIGNAL = OutputStream:unlocated[<class 'ezmsg.util.messages.axisarray.AxisArray'>](self.num_buffers=32, self.force_tcp=False)#

FILTER = <ezmsg.sigproc.decimate.ChebyForDecimate object>#

DOWNSAMPLE = <ezmsg.sigproc.downsample.Downsample object>#

configure()[source]#

A lifecycle hook that runs when the Collection is instantiated. This is the best place to call Unit.apply_settings() on each member Unit of the Collection.

Return type:: None

network()[source]#

Override this method and have the definition return a NetworkDefinition which defines how InputStream and OutputStream from member Unit s will be connected.

Return type:: Iterable[Tuple[Stream | str, Stream | str]]