target cross section

target cross section

[′tär·gət ′krȯs ‚sek·shən]
(electromagnetism)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Let [P.sub.t] represent the power of transmitter (GPS satellite), [G.sub.t] gain of transmitter, and a target cross section, [R.sub.1] shows range (distance) from GPS satellites to target, and [R.sub.2] is range from target to receiver; then the received power can be calculated as [9]
The simulation result of SNR versus range for reflected L1 and L5 GPS signals shown in Figure 5 was carried out for 0 to 1000 m range with target cross section of 10 [m.sup.2].
As shown in Figure 10, as we observe a target through turbulence, we may expect the decrease of the target cross section. It was, however, shown and experimentally verified that the apparent target cross section can increase as much as 2 or 3 times the free space cross section.
The total measured cross section ([Sigma]) is given by, (6) [Mathematical Expression Omitted] where [Sigma.sub.B] = the background cross section [Sigma.sub.T] = the target cross section [Psi] = the angle between the background and target
Part I begins by presenting the basic radar equation, radar antennas and electronics, signal propagation, radar target cross sections, noise effects, target detection, the radar ambiguity function, pulse compression, radar accuracy and monopulse operation.