f=iunsdgtreal(c,g,a,M,Ls);
| c | Cell array of coefficients. |
| g | Cell array of window functions. |
| a | Vector of time positions of windows. |
| M | Numbers of frequency channels. |
| Ls | Length of input signal. |
| f | Signal. |
IUNSDGTREAL(c,g,a,M,Ls) computes the inverse uniform non-stationary Gabor expansion of the input coefficients c.
IUNSDGTREAL is used to invert the function UNSDGTREAL. Read the help of UNSDGTREAL for details of variables format and usage.
For perfect reconstruction, the windows used must be dual windows of the ones used to generate the coefficients. The windows can be generated unsing NSGABDUAL.
P. Balazs, M. Dörfler, F. Jaillet, N. Holighaus, and G. A. Velasco. Theory, implementation and applications of nonstationary Gabor frames. J. Comput. Appl. Math., 236(6):1481--1496, 2011. [ .pdf ]