splitGradient¶

This function decomposes a trapezoidal gradient into its constituent parts: slew-up, flat-top, and slew-down. It takes a trapezoidal gradient structure as input and returns three separate extended trapezoid gradient structures representing the individual components. The delays within these components are adjusted to ensure that when added together using addGradients, the resulting gradient is equivalent to the original input gradient.

Syntax¶

function [grads] = splitGradient(grad, varargin)

Calling Pattern¶

mr.splitGradient(...)
mr.splitGradient('ParameterName', value, ...)

Parameters¶

Required Parameters¶

Parameter Name	Value Type	Description	Example	Units
`grad`	struct	A structure representing a trapezoidal gradient. This structure must contain fields defining the gradient's amplitude, rise time, flat time, fall time, delay, and channel ('x','y','z'). It should be created using functions such as `mr.makeTrapezoid`.	`mr.makeTrapezoid('x', 10, 0.001, 0.002, 0.001, 0)`

Name-Value Pair Arguments¶

Parameter Name (string)	Value Type	Default	Description	Example
`system`	struct	`[]`	A structure containing system parameters (e.g., gradient raster time). If omitted, default system parameters are used from `mr.opts()`. Valid values: A valid mr.opts structure	`mr.opts()`

Returns¶

Output	Value Type	Description
`grads`	struct	An array of three extended trapezoid gradient structures: slew-up, flat-top, and slew-down gradients.

Examples¶

[grads] = mr.splitGradient(mr.makeTrapezoid('x', 40, 0.001, 0.002, 0.001, 0), mr.opts('gradRasterTime', 0.0001));