Can digital filters actually separate signals?

Digital filters are used for two general purposes: (1) separation of signals that have been combined, and (2) restoration of signals that have been distorted in some way.

1. What are the limitations of digital filters?
2. What are 3 advantages of digital filters?
3. Can you design digital filters to analog signals?

What are the limitations of digital filters?

The standard disadvantage of a digital filter is that digital filters are significantly slower than analog filters (Smith). Digital filters introduce additional latency into a system, as the analog data that comes out of the hardware must be processed on a computer before it is filtered as desired.

What are 3 advantages of digital filters?

Digital filters require only the arithmetic operations of addition, subtraction, and multiplication. Digital filters do not drift with temperature or humidity or require precision components. Digital filters have a superior performance-to-cost ratio. Digital filters do not suffer from manufacturing variations or aging.

Can you design digital filters to analog signals?

Digital filters can be designed using analog design methods by following these steps: Filter specifications are specified in the digital domain. The filter type (highpass, lowpass,bandpass etc.) is specified. An equivalent lowpass filter is designed that meets these specifications.