pynrc.simul.ngNRC.add_ppc

pynrc.simul.ngNRC.add_ppc(im, ppc_frac=0.002, nchans=4, kernel=None, same_scan_direction=False, reverse_scan_direction=False, in_place=False)[source]

Add Post-Pixel Coupling (PPC)

This effect is due to the incomplete settling of the analog signal when the ADC sample-and-hold pulse occurs. The measured signals for a given pixel will have a value that has not fully transitioned to the real analog signal. Mathematically, this can be treated in the same way as IPC, but with a different convolution kernel.

Parameters

  • im (ndarray) – Image or array of images

  • ppc_frac (float) – Fraction of signal contaminating next pixel in readout.

  • kernel (ndarry or None) – Option to directly specify the convolution kernel, in which case ppc_frac is ignored.

  • nchans (int) – Number of readout output channel amplifiers.

  • same_scan_direction (bool) – Are all the output channels read in the same direction? By default fast-scan readout direction is [-->,<--,-->,<--] If same_scan_direction, then all -->

  • reverse_scan_direction (bool) – If reverse_scan_direction, then [<--,-->,<--,-->] or all <--

  • in_place (bool) – Apply in place to input image.