Evidences of SEU tolerance for digital implementations of artificial neural networks: one year MPTB flight results

The Microelectronics and Photonics Testbed (MPTB) carrying twenty-four experiments on-board a scientific satellite has been in a high radiation orbit since November 1997. This paper presents one year flight results of two of these experiments programmed to emulate an Artificial Neural Network (ANN) devoted to texture analysis. Telemeterd data provide evidences of the ANN intrinsic fault tolerance properties.