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A maximum-phase system is the opposite of a minimum phase system. A causal and stable LTI system is a maximum-phase system if its inverse is causal and unstable. That is, 1  The zeros of the discrete-time system are outside the unit circle.
Answers. Best Answer: The phase constant is a measure of how the waveform gets shifted, left or right, along the axis. If you have a basic sine wave, sin(t), you can adjust the amplitude, A sin(t), the frequency, sin(wt), and the phase, or at what point along the curve the signal starts: sin(t + phi). The easiest way to think about phase is to look at t = 0, and see how the waveform starts.