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On-board, tactical airborne sensor systems perform functions such as target acquisition, track, designation, identification, recognition, threat warning, threat count, missile launch detection and ground mapping in support of situation awareness, self-defense, navigation, target attack, weapon support and reconnaissance. Next generation tactical aircraft in development want those functions performed by sensor suits which exploit modular avionics concepts; exhibit low signature and enhanced stealthiness; have increased availability through increased functional redundancy; and are easy and less costly to maintain. Integrated IR sensors incorporating modular avionics concepts can satisfy those needs. Current IR systems for airborne tactical applications are packaged in either aftermarket pod mounted configurations or in chin mounted protuberances.

This paper deals with two variables affecting the pollutant emission of automotive vehicles: the driver and the traffic control. These factors are shown to have a substantial influence on the pollutant emission of a given vehicle, whether or not that vehicle has an exhaust device. Based on actual data, a function which gives the emission of an average vehicle versus speed, acceleration, and time is defined. To study the influence of driver behavior, a simplified version of the problem which consists in controlling a vehicle through a sequence of lights is examined; it is found that pollutant emission may vary up to one order of magnitude, depending on the control policy, for given physical conditions. A driving policy which minimizes pollution can be found using dynamic programming. The second factor, traffic control, is represented by signal timing along an axis. It is shown that a stop-and-go flow of cars produces twice as much pollutant as an equivalent volume of smooth flow.