Blue Apple       7/15/2009 4:38:27 AM

As to the the antenna location on the  MICA? Who cares about that?

Those who are tired of the lies you spread. It appears you are as mistaken about the MICA data link antenna location as you were about the MICA IR cooler (and that's a though level to reach).

For your information, MICA has a rear-facing antenna located in the tail of the missile one the side opposed to the umbilical, just like the AMRAAM (minus the draggy fairing).

The draggy fairing  is there for a very good reason, poster. The MICA antenna  is body shadow occluded by its fins and strakes, plus the antenna is the wrong length to cover aspect presentation distortion. So I wonder what the heck you think you proved except that you just revealed you really don't know why the Mica telemetry antenna doesn't work 

Congratulation, you've just discovered augmented proportional navigation...

Not the same (CREF below). 

Now could you

1) use the correct term in the future?

2) learn about augmented pronav and see what happens if you have even a small error in the target acceleration evaluation (hint: error becomes greater than vanilla pronav with a >30% overestimate)?

Well, incompetent, there is mechanical bias and there is telemetry update involved in the solutions,. The SARH or proper ATG/RH  method relies on two measurements, range and speed. for a track The IR principle, as I said, requires that you chase the image or the hot spot This (IR solution) is a constant correction process and it is proportional to image drift rate. What that means to you is that the faster the image drifts the harder the missile tries to jerk to follow the drift; so it wastes fuel, increases drag in turns and runs the missile out of potential energy very fast. Exactly a MICA solution as it works out for radar and IR and thus a bungled radar solution.

I've already said that radar missiles can use APN but that's only a refinement of the basic loop system thatackles second order terms. The basic strategy remains the same in both cases.

It doesn't work that way except to those who don't understand what energy management means in a trajectory profile, as chase versus lead, or how to conserve momentum via lead. Mister Lambert and Mister Newton therefore laugh at you. The angular bias that you can correct with either a proper radar seeker or with a proper antenna is HUGE with a single maneuver compared to the small bias corrections that an IR seeker can actually track. (Why do you think modern IR missile seekers gimble? Or in the case of STANDARD's secondary seeker use a side look ring array?)

Oh by the way, the solution (APN) that works for automobile assembly line robots and for some (few) IR missiles chasing constant speed change and bearing targets, doesn't work well when the target maneuvers in three axes wuth variant velocities and direction changes. You might want to check your google skills, there, bucko.