| 摘要 |
The invention relates to a process and a circuit for interpolating desired numerical data in a string of numerical data (Ak) obtained by sampling analog data at regular intervals, and using coefficients (CK). The process is characterised in that it includes the steps of calculation (5) of the products (Dk) of the string (Ak) and of the transitions (Dk), of division of the product data into three parts depending on the values of k, of simple addition of the data of the first part to obtain a sum S0, of calculation for the other two parts, of the respective sums S+ and S- in accordance with the Euler conversion method (7), the interpolation datum S0 + S+ + S- being formed in an adder (8). The invention is applicable in particular to converters of sampling frequencies. <IMAGE>
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