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Radar cross-section (RCS), denoted σ, also called radar signature, is a measure of how detectable an object is by radar. A larger RCS indicates that an object is ...
Synthetic Aperture Radar (SAR) instruments measure radar brightness, Radar Cross Section (RCS), which is a function of the reflectivity and moisture of imaged objects at wavelengths which are too long to be perceived by the human eye. Black pixels mean no reflectivity (e.g. water surfaces), white pixels mean high reflectivity (e.g. urban areas).
σ = radar cross section, or scattering coefficient, of the target; F = pattern propagation factor; R t = distance from the transmitter to the target; R r = distance from the target to the receiver. In the common case where the transmitter and the receiver are at the same location, R t = R r and the term R t ² R r ² can be replaced by R 4 ...
Optical cross section of a flat mirror with a given reflectivity at a particular wavelength () can be expressed by the formula = Where is the cross sectional diameter of the beam. Note that the direction of the light has to be perpendicular to the mirror surface for this formula to be valid, else the return from the mirror would no longer go ...
σ = radar cross section, or scattering coefficient, of the target, F = antenna pattern propagation factor, D = Doppler filter size (transmit pulses in each Fast Fourier transform), k B = Boltzmann constant, T = absolute temperature, B = receiver bandwidth (band-pass filter), N = noise figure.
Passive (multistatic) radar, bistatic radar [25] and especially multistatic radar systems detect some stealth aircraft better than conventional monostatic radars, since first-generation stealth technology (such as the F-117) reflects energy away from the transmitter's line of sight, effectively increasing the radar cross section (RCS) in other ...
The cross-section is the minimum apparent surface area observed in the direction of the radar that must be detectable.. Radar cross section changes with aspect angle. Cross section for anything except a perfect sphere depends upon the aspect angle, which how far the reflector is rotated with respect to the radar pulse.
Radar cross-section – the study of vehicle signature apparent to remote sensing by radar. Fluid mechanics – the study of fluid flow around objects. Specifically aerodynamics concerning the flow of air over bodies such as wings or through objects such as wind tunnels (see also lift and aeronautics).