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Scilab & ScicosLab – Structures

Scilab and ScicosLab are Open Source Math Programs that can be used in various engineering and scientific applications. I use ScicosLab with the Modnum tool box in all my Telecommunications work, but both Scilab/ScicosLab can be used for all the mathematics involved in my CelNav EBook. In a previous post (Ref.1) I introduced the programs and working with the console & editor functions. In this post I will look at structures. I use structures to import signals created in the Editor/Console into the Scicos visual block editor.

Structures

Structures have two components: Values & Time. I use structures to create various telecom modem signals in the Editor/Console and then import them into Scicos the visual block editor. In Figure 1 we create a simple cosine wave and define a structure V whose values are the values of the wave and whose time are the time values. Note that the structure V needs the values to be in columns, so we use the command t=t’ to change a row vector to a column vector. Figure 2 shows importing the structure V into Scicos.

Fig.1 Structure V created in Editor/Console
Fig.2 Structure V Imported into Visual Block Editor
FIg.3 YouTube Video “Scilab & ScicosLab Structures”
YouTube Channel
YouTube Channel

References

#1. “Scilab & Scicoslab – Open-Source Math for CelNav”

#2. “Scilab & Scicoslab – Open Source Math for the Plane Triangle”

#3. “Scilab & Scicoslab – Open Source Math for the Spherical Triangle”

#4. “Scilab & Scicoslab – HF Loop Bearing”

#5. “ScicosLab & Scicos – AM Modulator”

#6. “Scilab & ScicosLab – Graphs”

#7. Scilab Open Source Software

#8. ScicosLab Open Source Software

#9. ScicosLab with Modnum Toolbox

By Jeremy Clark

Jeremy Clark is a Senior Telecommunications Engineer and Advanced Amateur Radio Operator VE3PKC. He is the author of E-Books on Telecommunications, Navigation & Electronics.