206 



REFLECTION AND TRANSMISSION OF RADIO WAVES 



apparent center of reflection. For a row of reflection centers uniformly 

 spaced along a length L perpendicular to the line-of-sight from the radar, 

 for example, the fraction of time that a conically scanning radar points ofl" 



I I I I I 



(a) 

 SNB 



(0 

 SNB 180 



TRUE NOISE FREQUENCY 

 SPECTRAL ENERGY DISTRIBUTION 



Fig. 4-29 Spectra of Angle Noise for SNB Aircraft. 



