Sequence Design and Radar

Carefully designed sequences lie at the heart of virtually any digital system commonly used in our daily lives. Examples include GPS synchronization, multiuser CDMA systems, radar ambiguity function shaping, cryptography for secure transactions, and even the watermarking of digital images or videos. Each particular application requires a careful and delicate design of sequences or codes that enjoy some desirable properties such as low autocorrelation sidelobes for synchronization sequences, small cross-correlations in multiuser systems, and a proper response to Doppler effect in radar codes.