LTPDA Toolbox™ contents Introduction to the LPF state-space models in LTPDA   Introduction to the various LPF noise models

Building an LTP model

Building the LTP model is straightforward. It is simply another built-in model of the ssm class. Here's an example of building the default version of the LTP model: 

      % Build the default version of the LTP model      
      ltp = ssm(plist('built-in', 'LTP'));
To see what other versions of the LTP model are available, and the parameters that can be adjusted, you can look at the model documentation: 
      help ssm_model_LTP
then click on the 'Model Information' link to open a documentation window like the one shown here:



As you can see, there are various 'Versions' of the model available. Each version uses different versions of the various submodels, and different default values of the parameters.
The default version is always the first one!
In addition, you can scroll to the details section for a particular model version and see what configuration parameters are available to you.
Since the LTP model is assembled from sub-models, it is possible, for each version of the LTP model, to click on the name of the sub-models to access the documentation window associated with sub-model itself.

For example, we could build a version of the LTP model which is 1D and has DFACS set to Science Mode 2.2. To do that, you would do: 

      % Plist defining the LTP model we want to build      
      modelPlist = plist(...
                    'built-in', 'LTP', ...
                    'Version', 'Standard', ...
                    'DIM', 1, ...
                    'DFACS Mode', 'SCI2.2 M1' ...
                    );
                    
      % Build the defined LTP model      
      ltp = ssm(modelPlist);
To look at the details of the model you've built, you can either enter the variable name on the MATLAB terminal without a terminating semicolon and hit enter. Or, more effectively, you can use the ssm/viewDetails method which will display details of the model you've constructed in a documentation window: 
      ltp.viewDetails


Introduction to the LPF state-space models in LTPDA  Introduction to the LPF state-space models in LTPDA   Introduction to the various LPF noise models Introduction to the various LPF noise models

©LTP Team