The Morocco striker joined the Gunners on Friday in a Bosman deal from Bordeaux.
"They are the team of my youth," he said. "It was a choice of the heart. I like the Premier League and Arsenal, without any hesitation, is my preferred club.
"I have been a fan since I was a child."
Chamakh, 26, can't wait to improve his game under manager Arsene Wenger.
"I can't wait to get advice from the likes of Samir Nasri, Diaby, Sagna, Song. If my English was better then I would probably ask English players as well.
"I can't wait to see the stadium. In France people take a trip to London just to see it."