Frequency and focal region properties of random sparse arrays

摘要: The concept of a random array relay, in terms sparse array, is introduced. basic idea to replace the relatively compact radiating structures encountered conventional communication systems with widely and randomly dispersed systems. frequency focal region properties such arrays are treated. A methodology for obtaining expected response, contours depth field any given. technique exemplified results spherical spherical-shell arrays. In addition, computer simulation sample functions responses presented, both verify theoretical illustrate some salient