Radartutorial

Coordinate Systems

two-dimensional

three-dimensional

Figure 1: Dimensions

two-dimensional

three-
dimensional

Figure 1: Dimensions

Coordinate Systems

Depending on required vividness you can vote between a variety of graphic possibilities for the representation of functions and dependences.

At the Cartesian coordinate systems the axes are right-angled to each other. The function y= f(x) is represented best in a two-dimensional Cartesian coordinate system. As an example you can see in the figure an antenna diagram in a Cartesian coordinate system.

But just for antenna diagrams the representation is better in a coordinate system with polar coordinates. A point in the diagram is defined with giving of an angle and a distance. That means, this diagram is place obtained because the details only apply to the center. (The same point lies in a completely different direction and distance, looking by another location!)

Bildergalerie von Koordinatensystemen

Cartesian diagram with axes at right angles to each other as a reference. The angle values are entered on the X axis, the measured values on the Y axis.

Figure 2: Antenna pattern in a cartesian coordinate system

Diagram with the reference point in the center of the image and the correct measurement of the measured values. The size of a measured value is represented by its distance from the center of the graphic. Here is an example of an antenna diagram of a directional antenna.

Figure 3: the same antenna pattern in a polar coordinate system