US Patent 10247815 Phased array radar system with specular multipath mitigation

A phased array radar system comprises an array antenna including a plurality of selectively controllable transmit/receive (T/R) modules. One or more computer processors and associated memory devices are provided in communication with the plurality of T/R modules. The control processor is configured to cause the transmission of a first plurality of radio frequency (RF) pulses from a first portion of the array antenna, wherein the first plurality of pulses comprise at least two pulses having distinct center frequencies. A second plurality of RF pulses are transmitted from a second portion of the array antenna, wherein the second plurality of pulses comprise at least two pulses having distinct center frequencies. Received return signals originating from the first and second plurality of transmitted pulses are non-coherently integrated prior to the performance of target detection operations.