Method and apparatus for providing a passive transmitter based synthetic aperture radar

A method for receiving signals from an unknown transmitting source and providing the location of the unknown transmitting source comprising:

• receiving signals, in a series of channels, radiated by the unknown transmitting source;
• generating preprocessed time domain data from the received signals;
• generating a synthetic aperture radar (SAR) image from the received signals and using the preprocessed time domain data depicting a location of the unknown transmitting source;
• and
• processing the preprocessed time domain data to enhance a pixel value at each pixel location within the SAR image by summing signal data from each channel related to each pixel location to generate an enhanced SAR image.