This type of imaging terminal guidance has been around since (at least) the 1990s. They actually use low-resolution imagers because they are cheap and sufficien

This type of imaging terminal guidance has been around since (at least) the 1990s. They actually use low-resolution imagers because they are cheap and sufficient. There is nothing new or novel about the IR threat domain. It has never been compute-intensive. Current hypersonic kinetic-intercept missiles use ancient MIPS R3000/4000 class CPUs.