Patent ID: 9523768
Filing Date: 2016-12-20
CPC Classification: G01S

Claim Text:
1. A method comprising: generating, by a processor of a computing device, a first signal, a second signal, a third signal, and a fourth signal, wherein each of the first signal, the second signal, the third signal, and the fourth signal have a frequency, a phase, and an amplitude; transmitting, by the processor, from a first sub-array of a plurality of sub-arrays of an antenna, the first signal; transmitting, by the processor, from a second sub-array of the antenna, the second signal, wherein a first signal amplitude, a first signal frequency, a first signal phase, a second signal amplitude, a second signal frequency, and a second signal phase are configured such that when the first signal and the second signal are transmitted simultaneously the first signal and the second signal constructively interact to form a first beam signal, and further wherein the first beam signal is configured to have a first look angle; transmitting, by the processor, from a third sub-array of the antenna, the third signal; transmitting, by the processor, from a fourth sub-array of the antenna, the fourth signal, wherein a third signal amplitude, a third signal frequency, a third signal phase, a fourth signal amplitude, a fourth signal frequency, and a fourth signal phase are configured such that when the third signal and the fourth signal are transmitted simultaneously the third signal and the fourth signal constructively interact to form a second beam signal, and further wherein the second beam signal is configured to have a second look angle; receiving a first reflected signal by at least one sub-array of the plurality of sub-arrays of the antenna, wherein the first reflected signal comprises a reflected portion of the first beam signal, and wherein the reflected portion of the first beam signal has been reflected off of a first region within the first look angle; receiving a second reflected signal by at least one sub-array of the plurality of sub-arrays of the antenna, wherein the second reflected signal comprises a reflected portion of the second beam signal, and wherein the reflected portion of the second beam signal has been reflected off of a second region within the second look angle; and generating, by the processor, an interferogram utilizing information in the first reflected signal and the second reflected signal.