What does FWDM mean in UNCLASSIFIED

What is FWDM

The Floquet Wave Diffraction Method (FWDM) is based on Floquet theory - a branch of mathematics which deals with differential equations involving periodic functions. It descibes how waves propagating through two-dimensional media are diffracted and dispersed by obstacles or boundaries within that medium. Specifically, it can calculate the complex amplitudes of different waves at various positions around an obstacle with known properties such as size and shape. This information can then be visualised using 2D-plots showing the intensity distribution in space around the obstacle. Additionally, this method can also be used to calculate how these distributions are affected by changes in the boundary conditions such as refractive index or temperature along its surface.

Applications

FWDM has been successfully used in many fields such as antenna design, medical imaging techniques and non-destructive testing (NDT). For example, it has been proven useful for designing antennas which are able to transmit/receive signals even when surrounded by obstacles or walls which would otherwise disrupt electromagnetic radiation flow from one point to another. Similarly, its application in medical imaging allowed doctors to access more detailed information about the internal structures of patients' bodies without having to resort to surgery or other invasive techniques. Lastly, NDT technicians have also found this method useful for detecting imperfections inside materials which would otherwise be hard to detect using traditional methods such as X-ray or ultrasound scanning.