File Exchange

image thumbnail

TETRA (Terrestrial Trunked Radio) physical layer 4-QAM modulation

version 1.0 (19.2 KB) by

Physical layer implementation (4-QAM) of TETRA acording to ETSI EN 300 392-2 V3.4.1



View License

TETRA is the digital version of the "Walky Talky" used by departmets like police, fire-fighters or ambulance in some countries.

This simulink model implements parts of the physical layer as described in the specification. It includes:

- convolutional encoding
- scrambling
- timeslot generation
- modulation / demodulation
- bit error rate comparison

It is not though NOT complete! Be aware of the fact that convolutional encoding is a different one than in the specification and block encoding and interleaving are missing.

This is the 4-QAM modulation model. There is also a model applying the PI/4-DQPSK modulation

Comments and Ratings (4)


Cecko (view profile)

TETRA sets

what if i will use wav file as input...what will i do? please help me


Timo (view profile)

click on "download all" at the top right. i just tried it and it worked for me


excuse me, how can i download this file??

MATLAB Release
MATLAB 7.12 (R2011a)

Download apps, toolboxes, and other File Exchange content using Add-On Explorer in MATLAB.

» Watch video

Win prizes and improve your MATLAB skills

Play today