diff --git a/lab_4/calc_doppler_freq.m b/lab_4/calc_doppler_freq.m
deleted file mode 100644
index c8736f1..0000000
--- a/lab_4/calc_doppler_freq.m
+++ /dev/null
@@ -1,3 +0,0 @@
-function result = calc_doppler_freq(rrv, carrier_freq)
-    result = rrv * carrier_freq / physconst('LightSpeed');
-end
\ No newline at end of file
diff --git a/lab_4/normalized_carrier_frequency_offset.m b/lab_4/normalized_carrier_frequency_offset.m
deleted file mode 100644
index db4e0d9..0000000
--- a/lab_4/normalized_carrier_frequency_offset.m
+++ /dev/null
@@ -1,3 +0,0 @@
-function result = normalized_carrier_frequency_offset(freq_doppler, delta_freq_subcarrier)
-    result = freq_doppler / delta_freq_subcarrier;
-end
\ No newline at end of file