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function PlotAdrResids(adrResid,gnssMeas,prFileName,colors) |
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% PlotAdrResids(adrResid,gnssMeas,[prFileName],[colors]) |
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% plot the Accumulated Delta Range residuals for the 5 sats with most valid adr |
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% |
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% adrResid.FctSeconds = Nx1 time vector, same as gnssMeas.FctSeconds |
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% .Svid0 = reference satellite for single differences |
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% .Svid = 1xM vector of all svid |
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% .ResidM = [NxM] adr residuals (adr = -k*carrier) |
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% |
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% gnssMeas, the measurements (from ProcessGnssMeas) used to get adrResids |
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% |
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% Optional inputs: prFileName = string with file name |
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% colors, Mx3 color matrix |
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% if colors is not Mx3, it will be ignored |
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%Author: Frank van Diggelen |
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%Open Source code for processing Android GNSS Measurements |
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K = 5; %number of satellites to plot |
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if isempty(adrResid) || ~any(any(isfinite(adrResid.ResidM))) %Nothing but NaNs |
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fprintf(' No adr residuals to plot\n'), return |
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end |
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if nargin<2 |
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prFileName = ''; |
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end |
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M = length(adrResid.Svid); |
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N = length(adrResid.FctSeconds); |
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if nargin<3 || any(size(colors)~=[M,3]) |
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bGotColors = false; |
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else |
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bGotColors = true; |
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end |
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timeSeconds =adrResid.FctSeconds-adrResid.FctSeconds(1);%elapsed time in seconds |
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% find the K sats with most data |
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numValid = zeros(1,M); |
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for j=1:M |
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numValid(j) = sum(isfinite(adrResid.ResidM(:,j))); |
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end |
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[~,jSorted] = sort(numValid,'descend'); |
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hK=zeros(1,K); %initialize plot handle |
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for k=1:K |
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hK(k) = subplot(K,1,k); |
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jSv = jSorted(k); %index into correct adrResid.Svid, and columns of .ResidM |
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svid = adrResid.Svid(jSv); |
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h = plot(timeSeconds,adrResid.ResidM(:,jSv)); grid on, hold on |
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j = find(gnssMeas.Svid == svid); %index into gnssMeas columns |
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if bGotColors |
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set(h,'Color',colors(j,:)); |
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end |
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%get cycle slip flags |
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%From gps.h: |
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% #define GPS_ADR_STATE_CYCLE_SLIP (1<<2) |
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iCs = find(bitand(gnssMeas.AdrState(:,j),2^2)); |
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numCs = length(iCs); |
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if numCs |
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h=plot(timeSeconds(iCs),zeros(numCs,1),'xk'); |
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set(h,'MarkerSize',5) |
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end |
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ts=sprintf('Svids %d - %d',svid,adrResid.Svid0); |
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title(ts) |
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ylabel('(meters)'); |
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end |
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xs = sprintf('time (seconds)\n%s',prFileName); |
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xlabel(xs,'Interpreter','none') |
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linkaxes(hK,'x'); |
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subplot(K,1,1) |
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svid = adrResid.Svid(jSorted(1)); |
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ts=sprintf('ADR single difference residuals. No iono or tropo correction. Svids %d - %d',... |
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svid,adrResid.Svid0); |
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title(ts) |
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ax=axis; |
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ht=text(ax(1),ax(3),' ''x'' = declared cycle slip'); |
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set(ht,'VerticalAlignment','bottom','FontSize',8); |
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end %end of function PlotAdrResids |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% Copyright 2016 Google Inc. |
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% |
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% Licensed under the Apache License, Version 2.0 (the "License"); |
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% you may not use this file except in compliance with the License. |
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% You may obtain a copy of the License at |
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% |
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% http://www.apache.org/licenses/LICENSE-2.0 |
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% |
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% Unless required by applicable law or agreed to in writing, software |
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% distributed under the License is distributed on an "AS IS" BASIS, |
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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% See the License for the specific language governing permissions and |
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% limitations under the License.
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