Howtosignalprocessing
What is exponential sine sweep?
A swept-sine, also called a chirp, is a widely used signal for characterizing a frequency response of a linear system under test. A technique for analysis of nonlinear system (NLS) based on an exponential swept-sine signal has been first presented by Farina in 2000.
What does sine sweep mean?
The essence of a sine sweep test is that the base excitation input consists of a single frequency at any given time. The frequency itself, however, is varied with time. The sine sweep test may begin at a low frequency and then sweep to a high frequency, or vice-versa.
What is a logarithmic sweep?
A logarithmic sweep spends more time at the lower frequencies and spends equal time within each octave. This is why there is a predictable, steady/constant rate of roll-off over the measured frequency range.
