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Mcalpine G.A. Dammann J.F. Highfill J.H. Isaacs J.C. 《IEEE transactions on aerospace and electronic systems》1971,(5):932-941
A periodic FM altimeter is postulated and its illuminated area target modeled as an array of elemental scatterers. A computational form is then developed expressing the desired post mixer spectrum as a sum of spectral components corresponding to the individual scatterer returns. Application of the model is made to the case of a triangular linear sweep FM altimeter and samples of the calculated post mixer spectrum presented, illustrating the effects of antenna beam geometry, target surface properties, and modulation parameters. 相似文献
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