Reconnaissance of complex signal is an important part of the multifunctional digital array radar(MFDAR), which serves for multipurpose, including radar & communication signal reconnaissance or ESM(electronic support measurement). The real-time responsivity and flexibility are crucial for such a reconnaissance system. In this paper, we proposed a two-stage reconfigurable signal processing according to the reconnaissance characteristics of MFDAR. Then we constructed the Broadband Signal Reconnaissance Reconfigurable Computing Model(BSRRCM) based on the hybrid reconfigurable architecture to implement the processing procedures. BSRRCM describes non-identified and not unidirectional signal flow. Taking BSRRCM, we can decompose an application into a particular procedure which can be reconfigured completely and a partial reconfiguration tasks sequence, then this reconfigurable procedure and tasks sequence could be mapped on the appropriate computing platform. The BSRRCM has many merits at the same time, including flexibility, dynamic reconfigurability, multipurpose and scalability.