We present a novel method for ground moving target detection and imaging using a SAR system transmitting ultra-narrowband continuous waveforms. We develop a new forward model that relates the velocity as well as reflectivity information at each location to a correlated received signal. We reconstruct moving target images by a filtered-backprojection method. We use the image contrast as a metric...

Tracking moving targets is essential for animals that pursue prey or conspecifics. Recent studies in male and female hoverflies have described classes of neurons that detect the movements of small targets against a moving background but the mechanisms generating their responses remain unclear.