Good Code Sets Based on Triangular Chirps with Signed Segments and Different Slopes

A good code set based on triangular chirps is introduced. It is shown that changing the sign of one of the segments of the triangular chirp results in a quazi-orthogonal waveform. A good code set is generated by varying the slope and the sign of one of the segments of the triangular chirp. Thus, doubling the number of codes in the set obtained by varying the slope alone while preserving the cross-correlation properties of the set. The different members of the good code set satisfy other important conditions like constant time bandwidth product, tolerance to and the ability to detect Doppler shifts. It also shown that extended matched filters could be used to enhance the Doppler tolerance and detection capability of the codes. The proposed good codes sets could be used for MIMO radar and netted radar applications.