Hewlett Packard 9845 computation programs to compute Hankel transforms using convolution
Robert J. Bisdorf · Antarctica A Keystone in a Changing World · 1980
Digital filters used to e valuat e Hank el.In his publication finderson presents Fortran IV programs that compute Hankel t r an s f o r rn s b y dire c t an d lagged c o n v o 1 u t i o n.I n s o m e ap p 1 i c at i o n s t he 1 at t er t ec hn i que c an resu1t in a cons i derab1e sav i ngs i n t i m e. T h e s e p r o g r am s re p r e s e n t s o me o f t h e fas t e s t m e t h o d s f o r computing Hank el transforms while giving an accuracy of 3 to 5 digits.In general the Hank el transform of order n has the form r" ) GH Jn is the kernel function, B is the transform argument, and J is the Bessel func t i on of t he f i rst k i nd. Citation of p ar t i c u 1 ar rn an u f ac t u r e r s a n d m o d e 1 n u m b e r s d o e s not constitute endorsement by the U.S. Geological Survey.CD CTi 1 >--P-CO '-£i -P-4*.