Method and apparatus for calculating motional characteristics

Details Method and apparatus for calculating motional characteristics Method and apparatus for calculating motional characteristics

1990-08-22

1992-10-20

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Determining velocity

342105, 342115, G01S 1358

Patent

active

051574020

ABSTRACT:
For calculating motional characteristics, particularly of a projectile moving in a barrel of weapon, a microwave directed onto the projectile by a measuring structure is superimposed with the reflected wave and a a calculation of location-dependent velocity and acceleration is carried out based on the chronological curve of the phase difference by a one-time or, respectively, two-time differentiation. In order to reduce measured errors, the operating phase difference and, therefore, the location of the projectile is first assigned to each amplitude value in a registered interferometer signal. A compensation function for the time-dependent location of the projectile is then placed through the arc-cosine-transformed individual action points and the location-dependent projectile velocity is calculated by one-time differentiation and the acceleration is calculated by a further differentiation.

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