Howtosignalprocessing
- How is an LTI system characterized in discrete-time domain?
- What is LTI discrete system?
- What is continuous LTI system?
- Are continuous-time LTI system is causal only when?
How is an LTI system characterized in discrete-time domain?
Likewise, an LTI system can be noncausal, as can be seen in the following discrete-time system that computes the moving average of the input: The input–output equation indicates that at the present time n to compute y[n] we need a present value x[n], a past value x[n − 1], and a future value x[n + 1].
What is LTI discrete system?
“Discrete–time, linear, time invariant systems” refer to linear, time invariant circuits or processors that take one discrete–time input signal and produce one discrete–time output signal.
What is continuous LTI system?
Continuous-Time LTI System
That means the input is the impulse signal and the output is the impulse response. Consider a continuous-time LTI system as shown in the block diagram of Figure-1. Here, the input to the system is an impulse signal, i.e., 𝑥(𝑡) = 𝛿(𝑡)
Are continuous-time LTI system is causal only when?
Explanation: An LTI system is said to be causal only when its output at any time depends on the previous or present value of the input. A causal system cannot depend on the future values of the input.
