Page 345 - Fundamentals of Radar Signal Processing
P. 345

autocorrelation  coefficient ρ   [1]  is  denoted  as  simply ρ  for  simplicity.  The
                                                  c
               noise and clutter are uncorrelated with one another.
                     The definition of S  is
                                           I






                                                                                                       (5.15)

               Consider  the s   element.  Using  the  fact  that  the  noise  and  clutter  are
                                  11
               uncorrelated and that each is zero mean, it can be quickly concluded that







                                                                                                       (5.16)

               Next consider the s  element
                                      12









                                                                                                       (5.17)

               Again,  the  noise  and  clutter  are  zero  mean  and  uncorrelated  and  the  noise  is
               white, so that the expected values of the first three terms are zero. However, the

               last term becomes the pulse-to-pulse correlation of the clutter so that







                                                                                                       (5.18)

               It is easy to see that s  = s  and that            . Thus
                                        22
                                              11





                                                                                                       (5.19)


               so that
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