This paper reports Ku-band normalized radar cross section (NRCS) at low incidence angles ranging from 0◦ to 18◦ and in the wind speed range from 6 to 70 m/s. The precipitation radar onboard the tropical rainfall measuring mission and Jason-1 and 2 have provided 152 hurricanes observations between 2008 and 2013 that were collocated with stepped-frequency microwave radiometer measurements. It is ...

Approximations to the Mie–series are fundamental in many applications. In particular, for validation of efficient electromagnetic scattering algorithms (to compute the radar cross section of three dimensional targets) or to understand the electromagnetic scattering by rain drops, it is important to evaluate the Mie–series with accuracy close to machine precision. In this paper, we propose a qua...

Not later than 120 days after the date of the enactment of this Act, the Secretary of Defense shall submit to the Committee on Armed Services of the Senate and the Committee on Armed Services of the House of Representatives a report on the effects of windmill farms on military readiness, including an assessment of the effects on the operations of military radar installations of the proximity of...

In this work, a broadband and broad-angle polarization-independent random coding metasurface structure is proposed for radar cross section (RCS) reduction. An efficient genetic algorithm is utilized to obtain the optimal layout of the unit cells of the metasurface to get a uniform backscattering under normal incidence. Excellent agreement between the simulation and experimental results show tha...

In this paper, we present the wirelessmeasurement of various physical quantities from the analysis of the radar cross section variability of passive electromagnetic sensors. The technique uses a millimeter frequency-modulated continuous-wave radar for both remote sensing and wireless identification of sensors. Long reading ranges (up to some decameters) are reached at the expense of poor measur...

Microwave absorber are used in Military application, EMI reduction, Antenna pattern shaping, Radar cross reduction. Frequencyselective surfaces have been most commonly used in the radio frequency region of the electromagnetic spectrum and find use in applications as diverse as the aforementioned microwave oven, antenna radomes and modern metamaterials. One of the most important applic ations of...

While radar search and target detection are essential to radar use, most applications also require measurement of target characteristics. These may include target position and velocity, as described in Sections 8.1 through 8.3, and indicators of target size, shape and rotation, as described in Section 8.4. The use of multiple radar to improve measurement accuracy is discussed in Section 8.5. Co...

Snow crystals consist of many different types of ice particles. Typical radar measurements observe only bulk properties of all types of ice particles present in a radar volume. Due to their difference in radar cross-section, larger particles will reflect more power of the transmitted radar signal, than small particles. If small and large particles are present in the same radar volume with compa...

The DSSS radar is operational at our Institute using WiFi ‘b’ adapters and external horn at carrier frequency of 2.4 GHz. The system is able to detect a person, tree leaves, thin rod etc. The radar is tested using Flat plates of different cross sections and it results in a straight line curve will be very much useful in quantifying the target scattering parameters. Even this linear equation can...

A method for estimating the near-surface wind vector over water using the airborne weather radar in addition to its standard navigational application is discussed. A case of an airplane rectilinear flight over the water surface is considered. The radar operates in the ground-mapping mode in the range of middle incidence angles as a scatterometer. Wind vector is recovered from the azimuth normal...