↔️ Shift-Invariance (System) §

= a system, whose response is independent of shifts of of the independent variable of the signal¹:

Formal: §

$g_1(t-r)=g_2(t)$

Footnotes §

1. Fischer P, Sembritzki K, Maier A. System Theory. In: Maier A, Steidl S, Christlein V, Hornegger J, eds. Medical Imaging Systems. Vol 11111. Lecture Notes in Computer Science. Springer International Publishing; 2018:13-36. doi:10.1007/978-3-319-96520-8_2 ↩