软件定义的gps和伽利略接收机 求伪距的代码 其中msOfTheSignal和channelList怎么给定

青鸟河鱼

function [pseudoranges] = calculatePseudoranges(trackResults, ...
                                                msOfTheSignal, ...
                                                channelList, settings)
%calculatePseudoranges finds relative pseudoranges for all satellites
%listed in CHANNELLIST at the specified millisecond of the processed
%signal. The pseudoranges contain unknown receiver clock offset. It can be
%found by the least squares position search procedure.
%
%[pseudoranges] = calculatePseudoranges(trackResults, msOfTheSignal, ...
%                                       channelList, settings)
%
%   Inputs:
%       trackResults    - output from the tracking function
%       msOfTheSignal   - pseudorange measurement point (millisecond) in
%                       the trackResults structure
%       channelList     - list of channels to be processed
%       settings        - receiver settings
%
%   Outputs:
%       pseudoranges    - relative pseudoranges to the satellites.


for channelNr = channelList

    %--- Compute the travel times -----------------------------------------   
    travelTime(channelNr) =  ...
    trackResults(channelNr).absoluteSample(msOfTheSignal(channelNr)) ...
    / samplesPerCode;
end

%--- Truncate the travelTime and compute pseudoranges ---------------------
minimum         = floor(min(travelTime));
travelTime      = travelTime - minimum + settings.startOffset;

%--- Convert travel time to a distance ------------------------------------
% The speed of light must be converted from meters per second to meters
% per millisecond.
pseudoranges    = travelTime * (settings.c / 1000);

ahlangzai

你好，你解决了么？我也遇到同样的问题，如果你解决了，能不能告诉我下，谢谢。