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INPUT SIGNAL 



Figure B-6 Example of province picker output with mixed input of known 

 signals. The first half of the signal is white noise (A = 

 asO), joined to the second half of random walk generated 

 noise {A = as~M the amplitude of each half is doubled at 

 the mid-point. The break in spectral slope parameter is 

 easily detected. The change in level of RMS energy is con- 

 toured, as shown by straight line segments above the RMS 

 energy profile. 



146 



