text: Appendix B
  Figure B-19. Censor zone example
  COMMON SENSOR BOUNDARY
  B-74. Target duplication between radars is likely during combat operations. In addition, the sheer volume of
  targets being passed from the radars will overwhelm the targeting element, especially if the radars are under
  centralized control.
  B-75. An effective method of reducing the duplication of these targets for attack is to establish a common
  sensor boundary (see figure B-20). A common sensor boundary is a line depicted by a series of grid
  coordinates, grid line, phase line, or major terrain feature that divides target acquisition search areas
  into radar acquisition management areas.