Search of an acquisition face with modified spy radar

摘要

Radar beams for searching a volume are selected by determining the central angle and azimuth and elevation extents to define an acquisition face. The number of beams N_MBA required to cover the acquisition face is determined by; $$ \begin{array}{cc}{N}_{\mathrm{MBA}}=\left(2n+1\right)\left(m+\frac{1}{2}\right)+\frac{{\left(-1\right)}^{n+m}}{2}& \left(2\right)\end{array}$$The number of beams N_MBA is multiplied by the dwell per beam to determine the total search time, which is compared with a maximum time; (a) if the total search time is greater than the permissible time, the acquisition face is partitioned, and (b) if the total search time is less, the acquisition face information is applied to a radar processor for filling the unextended acquisition face with the number N_MBA of beams in a particular pattern.