Bessel

Bessel may refer to: * Bessel beam * Bessel ellipsoid * Bessel function in mathematics * Bessel's inequality in mathematics * Bessel's correction in statistics. * Bessel filter, a linear filter often used in audio crossover systems * Bessel Fjord, NE Greenland * Bessel Fjord, NW Greenland * Bessel (crater), a small lunar crater * Bessel transform, also known as Fourier-Bessel transform or Hankel transform * Bessel window, in signal processing * Besselian date, see Epoch (astronomy)#Besselian years * , a German merchant ship in service 1928–45, latterly for the Kriegsmarine Provided by Wikipedia