| 摘要 |
<p>PURPOSE:To shorten time for operation by making operation only on data of positive frequency from a median and diverting negative frequency data linear symmetric or point symmetric to the arithmetic value of the positive frequency data. CONSTITUTION:Frequency data F1 and F2 are stored in RAM 11 and 12 through a central processing unit 10 and each of frequency data F1, F2 is sent to a multiplier 15, a divider 16, two complementers 17 and an adder 18 and arithmetic data obtained are stored in a RAM 13. Arithmetic data to be put in the RAM 13 are obtained by making specified arithmetic on all data stored in the RAM 11 and 12. Real part frequency data are linear symmetric basing on the median and imaginary part frequency data are point symmetric in reference to the median. Observing this, operation is made on only either of positive or negative frequency data, and actually obtained arithmetic data are diverted to other positive or negative frequency data.</p> |
