A New Restoration Method for Radio Frequency Interference Effects on AMSR-2 over North America

Radio Frequency Interference

We describe the nature of the interference challenges facing radio astronomy in the next decade. These challenges will not be solved by regulation only, negotiation and mitigation will become vital. There is no silver bullet for mitigating against interference. A successful mitigation approach is most likely to be a hierarchical or progressive approach throughout the telescope and signal condit...

Radio Frequency Interference Mitigation in Radio Astronomy

Hemp: A New Crop with New Uses for North America*

“Hemp” refers primarily to Cannabis sativa L. (Cannabaceae), although the term has been applied to dozens of species representing at least 22 genera, often prominent fiber crops. For examples, Manila hemp (abaca) is Musa textilis Née, sisal hemp is Agave sisalina Perrine, and sunn hemp is Crotolaria juncea L. Especially confusing is the phrase “Indian hemp,” which has been used both for narcoti...

New Method for Retrieving Liquid Water Path over Land Using Amsr-e Observations

Measurements of cloud liquid water properties are important in a wide range of disciplines including climate change, numerical weather prediction (NWP) and aircraft icing. A variety of remote sensing techniques have been developed to address this need, including both visible/infrared and microwave methods. Unlike visible and infrared radiation, microwaves with frequencies of 90 GHz and less are...

A New High Frequency Grid Impedance Estimation Technique for the Frequency Range of 2 to150 kHz

Grid impedance estimation is used in many power system applications such as grid connected renewable energy systems and power quality analysis of smart grids. The grid impedance estimation techniques based on signal injection uses Ohm’s law for the estimation. In these methods, one or several signal(s) is (are) injected to Point of Common Coupling (PCC). Then the current through and voltage of ...