The data processing system further includes a discrete transforming means for performing a discrete transform on the input data at the first sampled frequency for trans forming the input data to a discrete function in a second - variable - domain at the first sampling frequency 此资料处理系统也包含一个离散转换装置，用来对以第一个取样频率所取样的输入资料作离散转换，也就是将输入资料转换成以第二个取样频率为频率及第二个变数为定义领域的离散函数。
