convert_gradients_to_slew_rates

convert_gradients_to_slew_rates#

mrinufft.trajectories.utils.convert_gradients_to_slew_rates(gradients, raster_time=0.01)[source]#

Derive the gradients over time to provide slew rates.

Parameters:

  • gradients (NDArray) – Gradients over 2 or 3 directions.

  • raster_time (float, optional) – Amount of time between the acquisition of two consecutive samples in ms. The default is DEFAULT_RASTER_TIME.

Returns:

  • slewrates (NDArray) – Slew rates corresponding to gradients.

  • initial_gradients (NDArray) – Gradients at the beginning of the readout window.

Return type:

tuple[ndarray[Any, dtype[_ScalarType_co]], ndarray[Any, dtype[_ScalarType_co]]]