A Few Examples of Pictures (Using MATLAB or c++):
Fig. Some well-known Signals: (1) transients.asc; (2) linchirp.asc;(2) tweet.asc; (2) sunspots.asc; (2) greasy.asc; (2) caruso.asc; (2) HochNMR.asc; (2) RaphNMR.asc; (2) esca.asc.
Fig.a Transient Signal (512 data).
Fig.b Greasy signal (8192 data).
Fig.c Tweet Signal (8192 data).
Fig.d Caruso sSgnal (50.000 data).
Fig.d Linchirp Signal (512 data).
Fig.e Sunspots Signal (2899 data).
Fig.f Esca Signal (1024 data).
Fig.g HochNMR Signal (2048 data).
Fig.g RaphNMR Signal (1024 data).
Fig. First returm maps for well-known Signals: (1) transients.asc;(2) linchirp.asc; (3) tweet.asc; (4) sunspots.asc; (5) greasy.asc; (6) caruso.asc; (7) HochNMR.asc; (8) RaphNMR.asc; (9) esca.asc.
Note that here the use of first return map does not presage of its utility but has rather a didactic sense.