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--- tanszek:oktatas:techcomm:system:system [2026/09/28 16:16] – knehez
+++ tanszek:oktatas:techcomm:system:system [2026/09/28 16:31] (current) – knehez
@@ Line 146: / Line 146: @@
 There are signals with constant values over time and those with changing values over time. Information is often conveyed by the change in the signal over time. The four main types of signals are:
-**1. Analog signals**
+**1. Analog signal**
 The signal is continuous in both time and value.
@@ Line 152: / Line 152: @@
 The signal is discrete in value.
-**3. Sampled signals**
+**3. Sampled signal**
 The signal is discrete in time.
@@ Line 160: / Line 160: @@
 The mathematical model of signals: a time-varying function. The model of a signal can be deterministic or stochastic. A stochastic signal is a composition of the useful signal and noise. A stochastic signal changes randomly. Stochastic signals can only be modelled using statistical methods.
-{{:tanszek:oktatas:techcomm:system:pasted:20241007-061106.png}}
+{{:tanszek:oktatas:techcomm:system:pasted:20260928-162912.png}}