Burst error compensation for a two-dimensional channel

In an optical channel for a digital holographic data storage system, burst errors, in the form of severe amplitude compression, are experienced in the vicinity of dust and other optical aberrations in the channel. The locations of these burst errors are approximately fixed over a range of perturbations in magnification and vertical-horizontal position. In a calibrated channel, lower error rates can be realized by allocating energy in the modulation code based on a measurement of the approximate location of these effects. This paper discusses theoretical bounds on the energy inside the distortion region, and the modulation code which is used to approach this bound