Postprint version. Published in American Journal of Physics, Volume 54, Issue 8, August 1, 1986, pages 693-699.
The definitive version is available at http://dx.doi.org/10.1119/1.14506.
Technical means of monitoring are used to verify compliance to arms control treaties. Numerical estimates are developed in order to quantify some aspects of (1) nuclear testing (signatures, optical double pulse calibration, decoupling in cavities, and high-frequency components in seismic signals), (2) optical reconnaissance (films versus CCDs, air turbulence, adaptive optics, and digital image processing), (3) infrared (resolution and detection sensitivity), and (4) radar (synthetic aperture and missile coefficient).
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