The current system architecture, AMIST Configuration II, facilitates the programming of multiple fire points capable of operating autonomously upon disconnecting from the controller. The programming can direct the fire points either to fire simultaneously or to fire individually, delayed with negligible timing errors.

AMIST Configuration II (see Figure 2) is the first multipoint initiation system to combine high timing precision with fire point autonomy. Each fire point consists of a logic board with processing and memory capabilities, a firing capacitor, and a high-voltage switch. A centralized controller uses a data bus to communicate with the fire points to update the firing modes at rapid intervals. Warhead designers preprogram a set of firing modes into the multipoint system, and each mode produces a different warhead effect. Based on the location of a given target relative to the warhead, the centralized controller selects the firing mode that will generate optimal lethality. Upon receiving the fire command, each fire point can disconnect from the data bus without affecting its operational performance. At the point of disconnect, the fire point no longer receives firing mode updates from the controller. Instead, it operates autonomously, using its own internal processor and memory to detonate at the time corresponding to the designated firing mode.

Testing has confirmed AMIST as a precise and reliable means of achieving multipoint initiation for future weapon systems. Although researchers developed the technology for potential transition to a dual-role weapon system, it has also proven useful as a range asset for other types of tests requiring controlled detonation of multiple fire points. AMIST has thus established itself as ideal for integration with any weapon system requiring a high level of lethality and a decreased probability of extensive collateral damage.

Capt Kenneth C. Bradley, Mr. Ed Wild, and Lt Chris Martin, of the Air Force Research Laboratory’s Munitions Directorate, and Lt Roger Platteborze, of the Air Armament Center, wrote this article. For more information, contact TECH CONNECT at (800) 203-6451 or place a request at http://www.afrl.af.mil/techconn_index.asp. Reference document MN-H-06-03.