What is the difference between advertising flighting and pulsing?

Flighting advertising strategy where av run during a period called flight follow by a period of no av (called hiatus). It is not continuous.

Pulsing is the combination of continuous and flighting advertising strategy. The main difference is in term of frequency of advertising. The difference compare to flighting strategy is there are some spending during all period of schedule. The difference compare with continuous strategy is there are periods in which the spending (frequency) is notably heavier than others.