UNB ECE4253 Digital Communications
Department of Electrical and Computer Engineering - University of New Brunswick, Fredericton, NB, Canada

Data Matrix Symbol Generating Tool (14 × 14)

This online tool encodes an input string into a Data Matrix 2D symbol as defined by the ISO/IEC 16022:2006 standard.

Data Matrix symbols are two dimensional bar codes arranged as distinctive square matrices with various dimensions according to their data capacity. The Data Matrix symbol produced here is a (14 × 14) matrix that carries eighteen bytes including eight data bytes.

A Data Matrix symbol incorporates many elements of a digital communications system including timing reference, interleaving, data compression, and the use of powerful error correction. Reed Solomon GF(256) error correction is used such that the symbol below holds 8 data bytes in a RS (18,8) code.


3.141592653589

3 . 1 4 1 5 9 2 6 5 3 5 8 9

Text Message:

Discussion | Size | View Bits | MATLAB


Data Matrix Character Coding

The (14 × 14) Data Matrix can carry eight bytes of information. Using the ASCII data format, each byte can be:

The input text message can be any combination of letters and digits occupying 8 bytes.

The input text provided: "3.141592653589" was coded into eight bytes as:

   msg = [ 52 47 144 145 222 195 165 219 ];

The remaining bytes in the symbol are computed to provide error correction.   (See MATLAB)

2024-03-04 14:02:37 AST
Last Updated: 2023-12-17
Richard Tervo [ tervo@unb.ca ] Back to the course homepage...