Okay, i now found the citations to the dual mode passive radar/IR seeker on ARMIGER, it's called "ARAS" developed by Diehl BGT Defence.
The ARMIGER is roughly the same weight as the HARM. The ARMIGER will have a GPS/IMU, as would the AGM-88D, to overcome the ARM problem when the emitter shuts down. In addition to the GPS/IMU the ARMIGER will have a new technology passive radar/high-resolution imaging infrared red dual-mode seeker (called ARAS). xxx
https://books.google.com.ph/books?id=K_T4M-nA6JYC&pg=PA600&lpg=PA600&dq=aras+dual+mode+seeker&source=bl&ots=uREALvq9ZC&sig=xGsqoQtGEFyVn5RYfDGlji2oYnQ&hl=en&sa=X&ved=0ahUKEwj5w9aUvoPZAhUMNbwKHcWqA-gQ6AEIKDAA#v=onepage&q=aras dual mode seeker&f=false
So you're wrong again. The dual-mode seeker on ARMIGER was not developed by Dassault Electronique, it was purely a German effort.BGT carried out captive carry trials of its ARAS dual-mode seeker in 1997, with additional trials also planned for 1998.