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Add files via upload #40

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164 changes: 164 additions & 0 deletions Matlab_ChannelCapacity.m
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function [output] = Matlab_ChannelCapacity(input)
% NOTE: the outputs that are returned
% MUST be in the same order as registered

% NOTE: Please DO NOT change anything above or below the USER MODEL AREA.
%
% This example shows static output parameters, but these parameters
% may change value at each time step.

switch input.method

case 'register'
% register output variables
PluginConstraintValue = {'ArgumentName','PluginConstraintValue',...
'Name','PluginConstraintValue',...
'ArgumentType','Output'};

% register input variables

DateUTC = {'ArgumentName','DateUTC',...
'Name','DateUTC',...
'ArgumentType','Input'};

EpochSec = {'ArgumentName','EpochSec',...
'Name','EpochSec',...
'ArgumentType','Input'};

CbName = {'ArgumentName','CbName',...
'Name','CbName',...
'ArgumentType','Input'};

ReceiverPath = {'ArgumentName','ReceiverPath',...
'Name','ReceiverPath',...
'ArgumentType','Input'};

RcvrPosCBF = {'ArgumentName','RcvrPosCBF',...
'Name','RcvrPosCBF',...
'ArgumentType','Input'};

RcvrAttitude = {'ArgumentName','RcvrAttitude',...
'Name','RcvrAttitude',...
'ArgumentType','Input'};

TransmitterPath = {'ArgumentName','TransmitterPath',...
'Name','ReceiverPath',...
'ArgumentType','Input'};

XmtrPosCBF= {'ArgumentName','XmtrPosCBF',...
'Name','XmtrPosCBF',...
'ArgumentType','Input'};

XmtrAttitude = {'ArgumentName','XmtrAttitude',...
'Name','XmtrAttitude',...
'ArgumentType','Input'};

ReceivedFrequency = {'ArgumentName','ReceivedFrequency',...
'Name','ReceivedFrequency',...
'ArgumentType','Input'};

DataRate = {'ArgumentName','DataRate',...
'Name','DataRate',...
'ArgumentType','Input'};

Bandwidth = {'ArgumentName','Bandwidth',...
'Name','Bandwidth',...
'ArgumentType','Input'};

CDMAGainValue = {'ArgumentName','CDMAGainValue',...
'Name','CDMAGainValue',...
'ArgumentType','Input'};

ReceiverGain = {'ArgumentName','ReceiverGain',...
'Name','ReceiverGain',...
'ArgumentType','Input'};

PolEfficiency = {'ArgumentName','PolEfficiency',...
'Name','PolEfficiency',...
'ArgumentType','Input'};

PolRelativeAngle = {'ArgumentName','PolRelativeAngle',...
'Name','PolRelativeAngle',...
'ArgumentType','Input'};

RIP = {'ArgumentName','RIP',...
'Name','RIP',...
'ArgumentType','Input'};

FluxDensity = {'ArgumentName','FluxDensity',...
'Name','FluxDensity',...
'ArgumentType','Input'};

GOverT = {'ArgumentName','GOverT',...
'Name','GOverT',...
'ArgumentType','Input'};

CarrierPower = {'ArgumentName','CarrierPower',...
'Name','CarrierPower',...
'ArgumentType','Input'};

BandwidthOverlap = {'ArgumentName','BandwidthOverlap',...
'Name','BandwidthOverlap',...
'ArgumentType','Input'};

CNo = {'ArgumentName','CNo',...
'Name','CNo',...
'ArgumentType','Input'};

CNR = {'ArgumentName','CNR',...
'Name','CNR',...
'ArgumentType','Input'};

EbNo = {'ArgumentName','EbNo',...
'Name','EbNo',...
'ArgumentType','Input'};

BER = {'ArgumentName','BER',...
'Name','BER',...
'ArgumentType','Input'};

output = {PluginConstraintValue,...
DateUTC, EpochSec, CbName, ReceiverPath, TransmitterPath,...
RcvrPosCBF, RcvrAttitude, XmtrPosCBF, XmtrAttitude,...
ReceivedFrequency, DataRate, Bandwidth, CDMAGainValue, ReceiverGain,...
PolEfficiency, PolRelativeAngle, RIP, FluxDensity, GOverT, CarrierPower,...
BandwidthOverlap, CNo, CNR, EbNo, BER};

case 'compute'

computeData = input.methodData;

% compute the Test Model :
% Example Model for testing only
% CommConstraint input & output parameter usage is shown
%

% USER CommConstraint MODEL AREA.

% Channel Capacity is the tight upper bound on the (data) rate at which information can be
% reliably transmitted over a communications channel given by the following:
% C (MBPS) = B (MHz) x log2(1 + S/N);
% S/N can be interchanged C/N which is a power ratio (not in dB).

time = computeData.EpochSec;

xmtrPos = computeData.XmtrPosCBF;
rcvrPos = computeData.RcvrPosCBF;
BW = computeData.Bandwidth;
CN = computeData.CNR;

range = norm(xmtrPos - rcvrPos)/1000;

cnratio = 10^(0.1*CN);
R = (1+cnratio);
L = log2(R);
C = BW*L;

output.PluginConstraintValue = C*1e-6;

% END OF USER MODEL AREA

otherwise
output = [];
end