Change signal to measure spf_sig to match time reference vector.

Author: pablorcum

toolbox/examples/demo_phase_prediction_error_simple.m

@@ -25,7 +25,7 @@
 
 %% Configuring an instrument buffer to acquire data
 instObj = slrealtime.Instrument;
-instObj.addSignal('spf_sig');
+instObj.addSignal('spf_sig_500Hz');
 instObj.addSignal('osc','BusElement','alpha.ip');
 instObj.BufferData = true;
 
@@ -42,21 +42,15 @@
 
 % Extract data and downsample fast signal
 osc_alpha_ipData = sigData{1}.data;
-spf_sigData = downsample(squeeze(sigData{2}.data)',2);
+spf_sigData = squeeze(sigData{2}.data)';
 
 % Compute sample frequency
 fs = 1/mean(diff(sigData{1}.time));
 
 % Compensante offset in instantaneous predicted phase
 numSamples = 3;
 osc_alpha_ipData = osc_alpha_ipData(1+numSamples:end,:);
-
-% Use same number of samples from SPF
-if size(osc_alpha_ipData,1) > size(spf_sigData,1)
-    osc_alpha_ipData = osc_alpha_ipData(1:size(spf_sigData,1),:);
-else
-    spf_sigData = spf_sigData(1:size(osc_alpha_ipData,1),:);
-end
+spf_sigData = spf_sigData(1:size(osc_alpha_ipData,1),:);
 
 
 %% Phase error using standard non-causal methods