Re: Target Motion Analysis - Geometry Pkg

[Thomas D. Dean]

On 05/03/16 11:54, Juan Pablo Carbajal wrote:

> Given a simple example is difficult to guess what is the mathematical
> meaning of the green line.
> Is this a pursuit problem?

Sort of.

I read an old paper, 1953, by Spiess and wanted to use the geometry 
package to solve it.

I looked in the Navy Maneuvering Board manual, online, and found this 
problem, which turned out fairly easy to plot with the geometry package.

Then, I got stuck in solving it.

Given the motion of the sensor, red line, and the 6 bearings, blue 
lines, what is the location, heading, and speed of the target?

The Maneuvering Board book gave this example, along with a graphical 
solution that required drawing an additional 12 lines.

I defined the green line, UnkLine, from the final solution given in the 
Maneuvering Board manual.

I continue to be unable to arrive at a solution.

The each of the bearing lines intersects the target line. This seems to 
be an under-defined problem.

Tom Dean