Only 055 has this type of missile launcher at this position.
Certainly no Burke, which doesn't have this rear launcher not even RAM, and Burkes don't have satcom in those positions either.
As for the sitcoms, which isn't on 055 photos I have seen, I find that PLAN constantly adds new small satcoms on ships on an ad hoc basis. Even on 052D and 054A, they put satcoms on different positions. I am not sure why but it is what it is. These satcoms could have been newly added to this particular ship. Note that Nanchang also added new satcoms (different ones they are circular) that were not there before when she was commissioned.