COM4LAB: RxTx 2 - Digital Modulations QPSK and QAM

The COM4LAB courses in transmission and reception technology explain the structure of classic and modern radio systems and the modulation of signals step by step. The properties of the signals are analysed in more detail in the time and frequency domains. For this purpose, there is a transmitter and a receiver system on the board in which all components can be analysed individually.

This course "Digital Modulations QPSK and QAM" covers PSK, QPSK and QAM modulation as well as QoS.

Total duration: Up to 16 hours

Target audience

Among others, the course can be used to support the training process for the following professions:

• electronics technician for devices and systems
• electronics technician for information and system technology
• aircraft electronics technician
• system electronics technician

Topics

The course covers the following topics:

Previous knowledge

• Students need knowledge of the structure of electronic circuits in order to successfully complete the course.
• The use of formulae is a prerequisite. It is important to be able to work with complex numbers in Cartesian form and in polar coordinates in order to interpret constellation diagrams.
• Students must be familiar with the basics of communications engineering. The meaning of the terms phase, amplitude and frequency is assumed.
• The difference between the frequency domain and the time domain of a signal is important, although the range of a Fourier transformation is not necessary.
• Knowledge of exponential and logarithmic laws is an advantage when converting power between watts and dBm.