% File : EnvironmentParameters.m
%  Project : AUVSimulator
%
%
% Environment description
% Included :
%			
%			Sea State Description
%			Current Description
%
%Author  : O. Doucy



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%
%  Configuration

environmentConfiguration = ('Waves + Current')
seaStateDescription = ('monochromatic 90deg incidence 10s, 1m')
currentDescription = ('no current')
%
% Sea State Description



			NUMBER_PERIODS =1;   % Number of discrete periods for sea state model 
								  % =1 for mono chromatic case 
			NUMBER_DIRECTION = 1; % Number of Direction (cosine repartion)
								  % =1 for mono directional case

			PERIODE_MINI = 10.;    %s minimum wave period encountered in the spectrum
			PERIODE_MAXI = 10.;    %s maximum wave period encountered in the spectrum
			                      % = PERIODE_MINI in case of mono chromatic wave

			WAVE_HEIGHT = 1;	  % m Significant wave height for PiersonMOskowitz spectrum
								  % = Double amplitude of wave in monochromatic case

			DEPTH = 6;			  % m Water Depth


			MEAN_DIRECTION = 90;   % deg mean direction of propagation
			SPREADING = 0;        % deg spreading of waves (cosine repartition)
								  % = 0 for mono directional case

			ALPHA = 8.1e-3;		  % Constant for PM Spectrum
			BETA = 0.0324;		  % Constant for PM Spectrum


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% Current Velocity Description
%
CURRENT_SPEED_NORTH = 0;   % North Velocity in m/s
CURRENT_SPEED_EAST = .2;   % North Velocity in m/s
CURRENT_SPEED_DOWN = 0;   % North Velocity in m/s
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% Sea State

SEA_STATE = [ NUMBER_PERIODS*NUMBER_DIRECTION ...
              NUMBER_PERIODS ...  
			  NUMBER_DIRECTION ...
			  MEAN_DIRECTION ...
			  SPREADING      ...
			  PERIODE_MINI   ...
			  PERIODE_MAXI   ...
			  DEPTH          ...
			  WAVE_HEIGHT    ...
			  ALPHA          ...
			  BETA ];

SEA_STATE = [ length(SEA_STATE) SEA_STATE];
%
CURRENT_SPEED = [CURRENT_SPEED_NORTH CURRENT_SPEED_EAST CURRENT_SPEED_DOWN];
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%  To be added : Bathymetry, sound velocity models for sonar model
%
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