| 摘要 |
Discrete derivative filter. Input signal enters by joint (6) into the appropriate set filter(1), then the joint (7) further transmitted averaging signal into analog memory (2). Joint (7) is associated with the joint (14), leads to averaging signal to differential member (3). This member generates a differential signal between the current averaging value of the input signal and the same signal value from the previous sampling period, which is stored in the analog memory (2). The resulting difference of those signals is transmitted by joint (9) to an analog memory (4), which said signal stores during one sampling period. Its length is determined by the control logic unit (5). This unit through the joint (11) controls an analog memory activity (2), through the joint (12) controls the operation of differential member (3) and over the joint (13) controls the operation of analog memory (4), which through the joint (10) transmits the output derived signal to other devices. |
