What does PULSAR stand for?

Pulsated Uniform Laser-Stimulated Artificial Radiation (SAUS)

Pulsating Star

Pulsed Sequencial Access Relay - Electronics (ECII)

Pulsed Uniform LASER-Stimulated Artificial Radiation - Proposed acronymic designation for pulsars, in the event they are found to be artificially caused by intelligent life from outer space

Pulsed Uniform Laser Stimulated Artificial Radiation (SAUS)

Pulse Star (SAUS)