Transcription of CHAPTER 20
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CHAPTER 20
CHAPTER 20 HEIGHT FINDING AND 3 DRADARD avid J. MurrowGeneral Electric HEIGHTFINDINGRADARSANDTECHNIQUESE arly radar Techniques for Height Finding. Early radar techniques em-ployed to find target height were classified according to whether or not theearth's surface was used in the measurement. The practice of using the earth'ssurface for height finding was quite common in early radar because antennaand transmitter technologies were limited to lower radio frequencies and broadelevation beams.
(b) FIG. 20.1 Early radar height finding techniques, (a) Method of multipath nulls, (b) Am-plitude comparison using multipath lobes. erator would keep the antenna boresighted on the target with a handwheel while
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