$ FIGURE 1


THE SOFTWARE IS THE HARD PART Te real difficulty in procuring and man- aging such a guided missile product line lies not in the hardware but in the soft- ware. Traditional design practices


for


guided missile development would yield radically different software loads for each configuration, especially as each evolves over time. Each of these software loads, in turn, would still be sensitive to minor physical changes in the subsystems.


Te root of the software problem lies in the customary, proprietary algorithms around which the guidance and control software is written. Traditional guidance and con- trol algorithms assume that


the missile


will have an interdependent architecture. Te MMT product line pushes the level of changes that the software must tolerate several steps further by allowing changes to occur not only in a given subsystem, but also to the order of the subsystems in the stack, the types of subsystems in the stack, the types of all-up rounds and even the launch platform types.


To achieve this level of flexibility for the software, MMT has derived a new set of guidance and control algorithms that assumes modular open systems architec- ture. Te primary means by which MMT has achieved this result was by building each guidance and control-related soft- ware item in the form of a data-driven object. In doing so, the operational code representing the algorithms does not have to be changed when the missile configu- ration changes; only the data file upon which the code operates needs to be changed to reflect the new configuration.


In simulation testing, MMT software has shown its ability to withstand wide variations in subsystems, configurations of all-up rounds and launch environ- ments. Potential applications have


COMMON SUBSYSTEMS


Computer-aided design models show the MMT subsystems. While open systems standards exist for the external interfaces of guided missiles, no open systems architecture options exist for the subsystems of guided missiles. MMT aims to change that by demonstrating a modular open systems architecture for guided missiles. (SOURCE: Chris Lofts, AMRDEC)


ONE PRODUCT LINE, MULTIPLE VARIANTS


Using a new “product line” approach, MMT envisions a family of munitions from a set of common subsystems that would be compatible with and effective from these platforms. The product line includes a drop-glide munition and a series of rocket-propelled variants, in line with the needs of the Army Aviation community. (SOURCE: Chris Lofts, AMRDEC)


FIGURE 2


ASC.ARMY.MIL


135


BBP 3.0


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116  |  Page 117  |  Page 118  |  Page 119  |  Page 120  |  Page 121  |  Page 122  |  Page 123  |  Page 124  |  Page 125  |  Page 126  |  Page 127  |  Page 128  |  Page 129  |  Page 130  |  Page 131  |  Page 132  |  Page 133  |  Page 134  |  Page 135  |  Page 136  |  Page 137  |  Page 138  |  Page 139  |  Page 140  |  Page 141  |  Page 142  |  Page 143  |  Page 144  |  Page 145  |  Page 146  |  Page 147  |  Page 148  |  Page 149  |  Page 150  |  Page 151  |  Page 152  |  Page 153  |  Page 154  |  Page 155  |  Page 156  |  Page 157  |  Page 158  |  Page 159  |  Page 160  |  Page 161  |  Page 162  |  Page 163  |  Page 164  |  Page 165  |  Page 166  |  Page 167  |  Page 168  |  Page 169  |  Page 170  |  Page 171  |  Page 172  |  Page 173  |  Page 174  |  Page 175  |  Page 176  |  Page 177  |  Page 178  |  Page 179  |  Page 180  |  Page 181  |  Page 182  |  Page 183  |  Page 184