0001 d=read_arcSouthTiming('18-Oct-2013:01:00:00','18-Oct-2013:18:00:00') 0002 close all 0003 0004 tstart=d.antenna0.roach1.utc(1); 0005 buffresample1=interp(d.antenna0.roach1.buffBacklog,100); 0006 buffresample2=interp(d.antenna0.roach2.buffBacklog,100); 0007 0008 h(1)=subplot(421) 0009 plot((d.antenna0.roach1.utc-tstart)*86400) 0010 hold 0011 plot((d.antenna0.roach2.utc-tstart)*86400,'r') 0012 title('roach1.utc (blue) roach2.utc (red)') 0013 0014 h(2)=subplot(423) 0015 plot(buffresample1) 0016 hold 0017 plot(buffresample2,'r') 0018 title('roach1.buffBacklog (blue) roach2.buffBacklog (red)') 0019 0020 h(3)=subplot(425) 0021 plot(d.antenna0.roach1.roachSeconds) 0022 hold 0023 plot(d.antenna0.roach2.roachSeconds,'r') 0024 title('roach1.roachSeconds (blue) roach2.roachSeconds (red)') 0025 0026 h(4)=subplot(427) 0027 plot(mean(d.antenna0.roach1.LLfreq,2)) 0028 hold 0029 plot(mean(d.antenna0.roach2.LLfreq,2),'r') 0030 title('roach1.LL (blue) roach2.LL (red)') 0031 0032 h(5)=subplot(422) 0033 plot((d.antenna0.roach1.utc-d.antenna0.roach2.utc)*86400) 0034 title('roach1.utc - roach2.utc (s)') 0035 0036 h(6)=subplot(424) 0037 plot(buffresample1-buffresample2) 0038 title('roach1.buffBacklog - roach2.buffBacklog') 0039 0040 h(7)=subplot(426) 0041 plot(d.antenna0.roach1.roachSeconds-d.antenna0.roach2.roachSeconds) 0042 title('roach1.roachSeconds - roach2.roachSeconds') 0043 0044 linkaxes(h,'x') 0045 0046 figure 0047 a=abs(fft((d.antenna0.roach1.utc-d.antenna0.roach2.utc)*86400)); 0048 plot(a) 0049 title('fft of utc difference') 0050 0051