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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: IEEE Trans Med Imaging. 2019 Feb 11;38(10):2389–2399. doi: 10.1109/TMI.2019.2898202

Fig. 5. Square wave data acquisition and image reconstruction using the AWR.

Fig. 5.

We integrate the signal for each square wave half-period and grid this value to the mean total applied field value. A slowly-varying bias field allows us to cover a large magnetic FOV. In this manner, we obtain a 1D square wave point-spread function (PSF). If we divide the applied field by a gradient strength (e.g., of a specific scanner) we can map to a 1D spatial PSF.