Communications, Radar & Electronic Warfare (201.. - Index of

232 Communications, Radar and Electronic WarfareIfi>Figure 13.3Compo Ile coverage representation Map data © OpenStreetMap contrlbutor&, CC-8Y-SA.military jet flying at 250 metre above the terrain or higher. In this case, terrain doeshave an effect on the coverage .• Bet erver prediction. Thi i an analyi of the relative power of a number ofbase tation to determine which provide the strongest signal at each location. Byagain utiliing the reciprocity theory, the ame principle can be used to determinewhich tation in a detection or OF network provides the highest probability ofdetecting a target in a specific location. The ame is true for radar networks andmost other kind of sytem. An illustration of a best server display is shown inFigure 13.5.• Coverage overlap. Thi i useful for analysing potential redundancy in communicationsor radar networks and also for determining where a OF baseline will be ableto localise targets because at least two (or preferably at least three) OF stations cansimultaneously receive a target transmission. This is illustrated in Figure 13.6.• Communications handover analysis. This occurs in regions where there isa workable signal strength from at least two base station , that the relativestrengths of ignals are within a given design value and that network handoverrules are met.