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xiaozhimonica

[转载]2010建模培训作业题

The Drug Runner Problem Two listening posts 5.43 miles apart pick up a brief radio signal. The sensing devices were oriented at 110° and 119°, respectively, (see Figure 1); and they are accurate to within 2°. The signal came from a region of active drug exchange, and it is inferred that there is a powerboat waiting for someone to pick up drugs. It is dusk, the weather is calm, and there are no currents. A Small helicopter leaves a pad from Post 1 and is able to fly accurately along the 110° angle direction. The helicopter’s speed is three times the speed of the boat. The helicopter will be heard when it gets within 500 ft of the boat. This helicopter has only one detection device, a searchlight. At 200 ft, it can just illuminate a circular region with a radius of 25 ft. 0 ^" z0 a# P9 ^1 h' P( ^ Figure 1. Geometry of the problem. • Describe the (smallest) region where the pilot can expect to find the waiting boat. • Develop an optimal search method for the helicopter. & P1 L9 r# j, dUse a 95% confidence level in your calculations. ; k% r( o: _8 _' }

zjqylcy

诶。。这个不是MCM88A题么。。。毒品走私船。
不是已经有答案了。。。呵呵

xiaozhimonica

在哪里有答案呐