Abstract: An apparatus configured to scan radar and radiometer combination used to image 3D atmospheric pressure from high altitudes or space. The apparatus includes a microwave sensor configured to operate at a V-band between a range of 51 and 71 GHz, producing high fidelity retrievals of one or more pressure and temperature profiles. The sensor includes a broadband transmitter and one or more receivers with three or more transmitted and received radar frequencies. The three or more transmitted and received frequencies are used to provide an estimate of atmospheric oxygen absorption in atmosphere. The sensor is further configured to provide vertical pressure profiles by combining three radar frequency data from the three or more transmitted and received radar frequencies with vertical temperature information.

Abstract: The disclosed subject matter relates to Frequency Diversity Pulse Pair (FDPP) methods and technology implemented by, alternating the order of the pulse pair transmitted or order of the group of multiple pulses transmitted, the pulses differentiated based on the center frequency of each transmitted pulse. For example, where a pair of transmitted pulses have center frequencies f1 and f2, the pulses transmitted in pairs such that the first pair may be f1 followed by f2 and the second pair are a different order, such as f2 followed by f1.

Abstract: The disclosed subject matter relates to Frequency Diversity Pulse Pair (FDPP) methods and technology implemented by, alternating the order of the pulse pair transmitted or order of the group of multiple pulses transmitted, the pulses differentiated based on the center frequency of each transmitted pulse. For example, where a pair of transmitted pulses have center frequencies f1 and f2, the pulses transmitted in pairs such that the first pair may be f1 followed by f2 and the second pair are a different order, such as f2 followed by f1.