diff --git a/Matlab/lab1.m b/Matlab/sig_sys/lab1.m
similarity index 100%
rename from Matlab/lab1.m
rename to Matlab/sig_sys/lab1.m
diff --git a/Matlab/lab2.m b/Matlab/sig_sys/lab2.m
similarity index 100%
rename from Matlab/lab2.m
rename to Matlab/sig_sys/lab2.m
diff --git a/Matlab/lab2_ref.m b/Matlab/sig_sys/lab2_ref.m
similarity index 100%
rename from Matlab/lab2_ref.m
rename to Matlab/sig_sys/lab2_ref.m
diff --git a/Matlab/lab3.m b/Matlab/sig_sys/lab3.m
similarity index 100%
rename from Matlab/lab3.m
rename to Matlab/sig_sys/lab3.m
diff --git a/Matlab/lab4.m b/Matlab/sig_sys/lab4.m
similarity index 100%
rename from Matlab/lab4.m
rename to Matlab/sig_sys/lab4.m