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Questions and Answers
What is the defining characteristic of a finite impulse response (FIR) filter?
What is the defining characteristic of a finite impulse response (FIR) filter?
How long does the impulse response of an Nth-order discrete-time FIR filter last?
How long does the impulse response of an Nth-order discrete-time FIR filter last?
What is the output sequence of a causal discrete-time FIR filter of order N?
What is the output sequence of a causal discrete-time FIR filter of order N?
What type of filter can have internal feedback and continue to respond indefinitely?
What type of filter can have internal feedback and continue to respond indefinitely?
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Can FIR filters be discrete-time and continuous-time, as well as digital and analog?
Can FIR filters be discrete-time and continuous-time, as well as digital and analog?
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Study Notes
Finite Impulse Response (FIR) Filter Characteristics
- The defining characteristic of a finite impulse response (FIR) filter is that it has a finite impulse response.
- The impulse response of an Nth-order discrete-time FIR filter lasts for N+1 samples.
Output Sequence of a Causal Discrete-Time FIR Filter
- The output sequence of a causal discrete-time FIR filter of order N is the sum of the products of the filter coefficients and the corresponding input samples.
Filters with Internal Feedback
- Filters that can have internal feedback and continue to respond indefinitely are infinite impulse response (IIR) filters.
Types of FIR Filters
- FIR filters can be both discrete-time and continuous-time.
- FIR filters can also be both digital and analog.
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Description
Test your knowledge of finite impulse response (FIR) filters with this quiz. Explore the key concepts and differences between FIR and infinite impulse response (IIR) filters.