Data transmission by radar

Radar systems' high power and antenna gain yields an excessive pulse power on the path to a target that may be used for the transmission of jamming-resistant data transmission, in addition to its normal use. Attention is given to the prospects and limits for such data transmissions via mechanically rotating search radars, including several illustrative examples. It is estimated that brief, 100-bit messages can be transmitted during each antenna rotation cycle with high resistance against jamming. In order to circumvent high detection loss with fluctuating sidelobes, a concept of burst transmission with preamble detection is also considered.