Declaration

TAlbrechtKernel = class(TWindowedSincKernel)

Description

TAlbrechtKernel applies Albrecht cosine-sum windows to the ideal Sinc filter.

Mathematics

The window function uses a cosine sum with precalculated minimum-sidelobe coefficients:

$$w(x)=\sum _{k=0}^{N-1}{a}_k\cos \left(\frac{k\pi x}{W}\right)$$

for $|x|\le W$.

References

• Hans-Helge Albrecht, "A family of cosine-sum windows for high resolution measurements", IEEE ICASSP, 2001.