The general list of questions About «FourierScope» - Research of radio signals and their spectra
1. The introduction or what buttons and what they do?
The introduction or what buttons and what they do? About «FourierScope» - Research of radio signals and their spectra
The editor of signals allows quickly and to construct a desirable signal conveniently. The editor
Can be in 3 modes: moving of points, addition of points, removal
Points. At program start the mode of addition of points is automatically activated,
At once to begin signal construction. Modes are switched to panels
Tools of the editor or from the main menu.
How to create a new signal? About «FourierScope» - Research of radio signals and their spectra
At start-up of the program the pure template for drawing a signal is automatically created, but it is possible to create it manually, by pressing a button of the toolbar ` to create a new signal ` or by selecting similar item in the main menu. After that there will be a dialogue for a task of properties: the initial scale of a signal on axes X, Y and whether is a signal periodic (it is required at the spectral analysis).
To create a signal, we make the following: In a mode of adding of points we click the Mouse in a window of the editor and press a left-hand button we pull to receive the first section of the future signal. By releasing a left-hand mouse button, we shall fix an obtained section. Further, to construct new sections or to divide old on two, simply we click the Mouse more to the right, more to the left or inside an old section. And thus is extendable to draw a signal of the necessary form.
How to edit a signal? About «FourierScope» - Research of radio signals and their spectra
At any moment at creation of a signal, it is possible will be switched in a mode of moving of points, that allows you to change coordinates earlier constructed points. Also with the help of double clique on a chosen point or section is possible to call the dialogue for editing their properties. For a point it is possible manually to set of its coordinate, and the coordinates will be limited to a position of adjacent points. In the dialogue of properties of a section it is possible to select it a type:
By selection of the third type it is possible to enter the necessary function, then a section in the editor of signs it the form (if, certainly, the function mathematically is correct). The program at the analysis of the formula understands arithmetical operations: +, -, *, / , ^ (exponentiation); numerical constants, number PI: `pi`, number e: `exp`; and also set of main trigonometrically and logarithmic functions: sin, cos, tg, ctg, ln, log2, log10.
For editing a signal, probably, it is required to delete any point. It can be made in a mode of moving of points, by allocating the necessary point and by pressing a key `Delete` on the keyboard, or it is possible to proceed in a mode of deleting of points, by pressing a button, switch on the button panel of the program, then the click of the Mouse on any point will delete it.
How to adjust area of the review of a signal? About «FourierScope» - Research of radio signals and their spectra
In anyone from three editing`s it is possible to set up a view point behind a signal in a window of the editor and scale of survey. On the upper toolbar there are buttons for increase / reduction of a scale, and for self tuning survey for the full review of the chart. Also in any editing it is possible to increase the necessary area of the chart. For it it is necessary зажав a with the right of mouse button to allocate area, which you wish to increase.
How to receive all spectra of a signal? About «FourierScope» - Research of radio signals and their spectra
After a construction of a desirable signal to receive it of spectral reflectance, simply we click on a bookmark ` an Amplitude spectrum `, ` a Phase spectrum ` or ` a Power spectrum `. Thus the editor will be switched in the browse mode of obtained spectra and there will be a special cursor, which follows ` under the chart ` for survey of precociously values of spectral reflectance. The moving of this cursor is made with the help of left button clicks on the chart.
The kind of spectral reflectance depends on that, the signal periodic whether or not is (that is there will be a spectrum continuous or as a set of harmonics). It is possible to set this property at creation of a new signal or at any moment in the dialogue of tunings. If is given, that a signal periodic, the analyzer understands specific in the editor a signal as one period. If acyclic, specific in the editor the signal is understood as specific area of an infinite signal, and outside of specific area the signal is equal to zero.
How to an initial signal it is possible to apply modulation? About «FourierScope» - Research of radio signals and their spectra
To an initial signal it is possible to apply modulation one from three kinds: amplitude, frequent or phase. All parameters of modulation are set in the dialog box ` Parameters of modulation `:
How to adjust parametres of the spectral analyzer? About «FourierScope» - Research of radio signals and their spectra
The parameters of the editor and analyzer can be set up in the `Set-up` dialog box, which is called through the main menu ` the Analysis - > of Set-up … `. In this window it is possible to set parameters of the editor:
How quickly to change options? About «FourierScope» - Research of radio signals and their spectra
Some key parameters of the editor and analyzer can fast be set up not opening the `Set-up` dialogue, immediately in the main window of the program. It is such key parameters as:
How to me to put markers of levels of a signal? About «FourierScope» - Research of radio signals and their spectra
If you wish to make results of researches more evident, you can for any point on charts add text markers: