| Article ID: | iaor19921464 |
| Country: | Netherlands |
| Volume: | 36 |
| Issue: | 2 |
| Start Page Number: | 107 |
| End Page Number: | 113 |
| Publication Date: | Jan 1992 |
| Journal: | Discrete Applied Mathematics |
| Authors: | Helleseth Tor |
Circulant codes related to QR codes are studied. An expression for the weight of a codeword in the code is given in terms of a Legendre sum.