227 karma · joined September 4, 2017
Many times I have used traditional solvers to map out an old building where no angles are 90°. I measure a bunch of distances (with some inaccuracy of course) and spend hours fighting with the solver to get to something that satisfies most of the measurements.
This takes time because I am in essence doing exactly the converging spring forces simulation that you propose. Except much slower :-)
Not hard to see path ahead of us similar to Linux's gradual step towards Rust in the kernel.
It would do an even better job if it also mentioned that an FMCW based human presence detector consumes several orders of magnitude more power than a PIR sensor, which means battery operation will either make the sensor very large or require frequent battery changes.
As any EE knows from linear elements course A, a linear two-port network is reciprocal. If it is not reciprocal it is not linear.
The simple conclusion is that if it matters how you orient the cable, then it has distorsion.
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