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RADAR AND ARPA MANUAL
The principle is similar to line-to-line correlation
which is described in Section
3.9.5.1,
but differs in that,
instead of comparing the contents of two
different
range
cells at the same range on successive lines, the compari-
son is made between the content of the
same
range cell on
two (or more) successive aerial rotations. The theory of
operation can be understood by asking the question: 'If a
wave with a favourable aspect is present in a given range
cell, what is the probability that a favourable wave will
be present in the same range cell after one aerial rotation,
i.e. after approximately 3 seconds?' Evaluatio ...