Patent ID: 9588223
Date: 2017-03-07
CPC Classifications: G01S

Claim:
1. A vehicle-mounted synthetic aperture system comprising: a ping transmitter configured to transmit a series of pings; a physical array of receiving elements configured to receive a ping return for each transmitted ping; a plurality of acquisition circuits, each connected to one of the receiving elements and configured to produce digital sampled data at a plurality of points in time; and a processing unit configured to receive the sampled data, the processing unit being configured to receive real-time navigation state data and configured to form a plurality of stave sums, each stave sum being the sum of sampled data corresponding to a contiguous subset of the receiving elements; the processing unit being configured to select the contiguous subset, based on the navigation state data, to form a phase center for a ping at substantially the same point as a phase center for a previous ping.