diff --git a/form_raw_rx_dec.m b/form_raw_rx_dec.m
index 26da7c5..10d3109 100644
--- a/form_raw_rx_dec.m
+++ b/form_raw_rx_dec.m
@@ -1,3 +1,10 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Project code file for ECE 257B SP2018                                   %
+% Author: Yu-Jen Ku, Xueshi Hou                                           %
+%         Department of Electrical and Computer Engineering,              %
+%         University in San Diego, California, USA                        %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
 function raw_rx_dec = form_raw_rx_dec(sample_start,raw_rx_dec,Delay,sample_time,raw_rx_dec_input,center_freq,showdetail)
 if showdetail
   disp( [ 'delay(in T_sample) = ' num2str(ceil(Delay/sample_time))] );