Synthetic Aperture Imaging

Synthetic aperture imaging techniques are disclosed. An example handheld electronic device includes a first component coupled in a movable relationship with a second component, a signal source disposed at the first component to direct outgoing signals toward an area of interest, and a signal receiver disposed at the second component to detect return signals reflected from the area of interest due to the outgoing signals. The device also includes a processor and computer program code configured to cause the electronic device to measure signal characteristics of the return signals at a plurality of measurement positions as the second component is adjusted relative to the first component to change a distance between the signal source and signal receiver. The signal characteristics are processed to generate image data for objects in the area of interest.