what is z transform in digital signal processing
Z-transform The Z-transform can be defined as either a one-sided or two-sided transform.[7]
Ground (electricity) In a polyphase AC system, an artificial neutral grounding system may be used. Although no phase conductor is directly connected to ground, a specially constructed transformer (a "zig zag" transformer) blocks the power frequency current from flowing to earth, but allows any leakage or transient current to flow to ground.