The idea of controlling wave propagation — directing it to flow ... reflected waves can cause interference, garbling signals or reducing efficiency. Ten years ago, researchers managed to ...
Diffraction of a low frequency sound wave around a barrier. Note that the barrier does not create a sound shadow in the area of the lower right-hand corner. Barriers not built for acoustical purposes ...
an adaptive array antenna was used in the construction of an interference elimination system for a broadcast- wave relay station. Future work will involve the construction of efficient low-cost ...
Interference can arise with one source of waves where the waves travel different distances before meeting. The difference in the distance travelled (the path difference) must be a full number of ...
Refraction of sound waves by two layers of air at different ... See: CANCELLATION, INTERFERENCE. Ref.: Wiener and Keast, "Experimental Study of the Propagation of Sound Over Ground," Journal of the ...