ada4dThe Air Defense Alerting Device (ADAD) is a passive infrared-based sensor system desned for short-range air defense (SHORAD) applications. ADAD is widely used toADAD. ADAD is the Old Akkadian and Assyro-Babylonian name of the ancient Middle Eastern storm god, called Adda (Addu) or Hadda (Haddu) in northwest Semitic areas and known later