Using reverberation techniques for testing an intercommunications system on a navy aircraft (2001: a test lunacy)

Shielding Measurements of the Space Shuttle (Endeavour in a Changing EMI Space)

“…A reverberation chamber of a size to support the Endeavour is simply not available. However in the past, NAWC had experimented and performed reverberation evaluations in their Aircraft Shielded Hangar with good results [1,4]. An evaluation in this hangar would provide the opportunity to evaluate a worst-case scenario, as the hangar is heavily loaded with a number of wooden structures, aircraft and large panels of anechoic material.…”

“…A non-directional antenna may provide some statistical smoothing. In a typical room sized reverberation chamber at frequencies below 1 GHz [1], it has been shown that there is very little difference between a directional and non-directional antenna, but above that, the direct and the reflected signal become very different due to the greater absorption of materials in the reverberation chamber. However, these findings of the omni directional antenna would appear to contradict the requirement for a directional antenna in a typical reverberation chamber.…”

“…The methodology is a progression of ideas developed by NAWC, the Naval Surface Warfare Center (NSWC), NIST and NASA. [1][2][3][4]. The changing avionics marketplace is relying on increased partnerships such as this to meld industry expertise and realize elevated goals.…”