PAT and PX code Pulse compression

generate PAT and PX code Pulse compression

Px and PAT codes are classes of polyphase codes of perfect square length derived
for improving previous polyphase codes performance. Px code is a modified class
of frank code having a dc frequency in the middle of the pulse rather than the
beginning in frank code. The PAT code is a new model of polyphase sequences of square length N = L^2. PAT code was presented by Petrolati D, Angeletti P, Toso G (2012).