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Encyclopedia :: encyclopedia : Digital signal processing (Site not responding. Last check: 2007-11-01) |
 | | Since the goal of DSP is usually to measure or filter continuous real-world analog signals, the first step is usually to convert the signal from an analog to a digital form, by using an analog to digital converter. |
| | A filter may also be described as a difference equation, a collection of zeroes and poles or, if it is an FIR filter, an impulse response or step response. |
| | Filters can also be represented by block diagrams which can then be used to derive a sample processing algorithm to implement the filter using hardware instructions. |
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