Tail estimates are developed for power law probability distributions with exponential tempering using a conditional maximum likelihood approach based on the upper order statistics. The method is demonstrated on simulated data from a tempered stable distribution, and for several data sets from geophysics and finance that show a power law probability tail with some tempering.

Elaboration of a new approach to solving of a contradictory and challenging problem of through wall detection radar design is the main goal of the paper. Two types of radars have been investigated: (1) CW radar that uses pseudo-random sequence (PRS) of the maximal length (m-sequence), hereinafter referred to as PRS-radar and (2) CW radar with use of the noise waveform at corresponding carrier f...

Near-Earth asteroid (NEA) 1566 Icarus ( = a 1.08 au, e=0.83, =  i 22 .8) made a close approach to Earth in 2015 June at 22 lunar distances (LD). Its detection during the 1968 approach (16 LD) was the first in the history of asteroid radar astronomy. A subsequent approach in 1996 (40 LD) did not yield radar images. We describe analyses of our 2015 radar observations of Icarus obtained at the ...

The accuracy of radar-based rain rates is limited by the calibration of radar reflectivity (ZH), which must be measured within 1 dB for rainfall estimates to have an accuracy of 15%. Several approaches to radar calibration have been undertaken which are summarized in Atlas (2002). The receive component of the radar can be calibrated using a transmitter with a known signal strength. Transmit and...

A variety of UGV (Unmanned Ground Vehicle) applications pose the challenge that UGVs need to handle human detection and tracking in complex environments that include dusty, smoky and foggy conditions. These environments make a vision-based human tracking-by-detection system ineffective. To cope with this challenge, we build a radar-vision fusion system, utilizing a 77GHz 2D Delphi ESR (Electron...

Standard Gaussian-type statistics are not really adequate to describe atmospheric variability; this traditional approach implicitly dismisses fluctuations as "noise" of use only in computing a standard deviation which, together with the mean, presumably varies so little in space and time that one can meaningfully speak of "climatological" values. In geophysics, unfortunately, this approach ofte...

An approach for creating a low-cost Chaos Pulsed-Doppler Radar is presented. The objective of this effort is to develop a practical realization of a Chaotic Radar with performance advantages over other approaches. Many groups [2], [3] have proposed that Chaotic Waveforms are an effective radar signal generator due to: the relatively low cost of producing complex wideband waveforms and the diffi...

Conventional usage of multiparameter radar measurements for rainfall estimation has been associated with tracking the variability of the raindrop size distribution. The use of multiparameter radar measurements in a statistical framework to estimate rainfall is presented in this paper. The techniques developed in this paper are applied to the radar and rain gauge measurement of rainfall observed...