Change number of summation terms for calculating periodic Green's function
the number of summation terms used to calculate periodic Green's function
of the infinite array. This method calculates of
the periodic Green's function. The summation is carried out from –
num. A higher number of terms results in better
accuracy but increases the overall computation time.
array — Infinite array
Infinite array, specified as a scalar.
num — Number to calculate summation terms
10 (default) | scalar
Number to calculate summation terms, specified as a scalar.
The summation is carried out from –
Change Number of Summation Terms in Infinite Array
Create an infinite array with the scan elevation at 45 degrees. Calculate the scan impedance. By default, the number of summation terms used is 21.
h = infiniteArray('ScanElevation',45); s = impedance(h,1e9)
s = 85.0891 + 71.2268i
Change the number of summation terms to 51. Calculate the scan impedance again.
numSummationTerms(h,25) s = impedance(h,1e9)
s = 85.2350 + 71.2606i
Change the number of terms to 101. Increasing the number of summation terms results in a more accurate scan impedance. However, the time required to calculate the scan impedance increases.
numSummationTerms(h,50) s = impedance(h,1e9)
s = 85.2802 + 71.2652i
Introduced in R2015b