Can we track the SARS virus using a Synthetic Aperture Radar System is the question?
Aperture undersampling using compressive sensing for synthetic aperture stripmap imaging | SpringerLink
Synthetic aperture imaging is a high-resolution imaging technique employed in radar and sonar applications, which construct a large aperture by constantly transmitting pulses while moving along a scene of interest. In order to avoid azimuth image ambiguities, spatial sampling requirements have to be..
https://link.springer.com/article/10.1186/1687-6180-2014-156
The principle to form a synthetic array is through transmitting pulses at index times p and receiving the echo signals at each sensor element position a p =[0,p ΔA,hog]T, where hog is the height overground and ΔA denotes the advance per ping of the imaging platform. A typical geometrical setup of a synthetic aperture imaging system operating in stripmap mode is depicted in Figure1, where the direction of wave propagation and the traveling direction of the imaging platform are called range, x, and along-track, y, respectively.
A synthetic aperture radar (SAR) is an active sensor that first transmits microwave signals and then receives back the signals that are returned, or backscattered , from the Earth's surface. The instrument measures distances between the sensor and the point on the Earth's surface where the signal is backscattered.
Microwave transmission is the transmission of information by electromagnetic waves with wavelengths in the microwave range (1 m - 1 mm) of the electromagnetic spectrum. Microwave signals are normally limited to the line-of-sight, so long-distance transmission using these signals requires a series of repeaters forming a microwave relay. It is possible to use microwave signals in over-the-horizon communications using tropospheric scatter, but such systems are expensive and generally used only in specialist roles.
"electromagnetic waves"
