pulpy.rf.util.dinf

pulpy.rf.util.dinf(d1=0.01, d2=0.01)[source]

Calculate D infinity for a linear phase filter.

Parameters:

d1 (float) – passband ripple level in M0**-1.
d2 (float) – stopband ripple level in M0**-1.

Returns:

D infinity.

Return type:

float

References

Pauly J, Le Roux P, Nishimra D, Macovski A. Parameter relations for the Shinnar-Le Roux selective excitation pulse design algorithm. IEEE Tr Medical Imaging 1991; 10(1):53-65.