Decomposition of Drift and Jitter Line-of-Sight Error
SigFit can decompose line-of-sight error into drift and jitter components if an integration time is specified. The drift component of line-of-sight error results in a position error in the image while the jitter component results in a degredation in image quality.
Table 1 – Drift Line-of-Sight Error Results Summary
Table 2 – Jitter Line-of-Sight Error Results Summary
SigFit also computes the percent modal contributions to the line-of-sight error PSD predictions as shown in Table . This allows the user to identify which modes to consider when contemplating performance enhancing design changes.