importnumpyasnpimportmatplotlib.pyplotaspltimportscipy.signalassignalimportrandomfs=13560000bit_0=[-1]*64+[1]*64bit_1=[1]*64+[-1]*64CEF_SOF=bit_0*48CEF_EOF=[1]*512cef_frame_length=16cef_frame_bit=[]cef_frame_pattern=[]foriinrange