On behalf of the organizing committee, we welcome you to the twelfth IEEE Sensor Array and Multichannel Signal Processing (SAM) Workshop in Trondheim, Norway. After a long period of virtual scientific meetings, it is particularly exciting that we could finally meet in person and organize SAM 2022 as a physical event.

The SAM Workshop is an important IEEE Signal Processing Society event that provides a fruitful forum for nurturing scientific and industrial networking and exchanging innovative ideas within sensor array, multichannel signal processing, sensors, and wireless communication networks. This year, the workshop features six plenary talks by leading researchers in the field and four tutorials as well as poster sessions covering roughly 100 high-quality research papers.

We are delighted to bring SAM to Norway for the first time and, in particular, Trondheim. Trondheim is a vibrant city with a small-town heart bustling with youth and fresh ideas, a thriving tech community with innovative start-up incubators and co-working spaces, primarily owing to being the home of NTNU, the largest university in Norway. Founded by the Vikings in 997, it was the first capital of Norway and still has a relevant place in Norwegian history, with several museums andhistorical places. Trondheim is also surrounded by breathtaking nature, ranging from the fjord to the mountains. In addition, Nidaros Cathedral is one of the main pilgrimage sites in North Europe -we can all enjoy a concert here before the conference dinner.

We wish to thank everyone who has contributed to making SAM 2022 a success, including the organizing committee, the technical chairs, the technical program committee, special session organizers, plenary and tutorial speakers, and, especially the contributing authors. Last but not least, a big thanks to our sponsors, in particular, the Research Council of Norway, DNV, Nordic Semiconductor, and SINTEF.

Pierluigi Salvo Rossi and Stefan Werner