[PDF] Top 20 Errors due to random noise in velocity measurement using incoherent-scatter radar

... by incoherent-scatter ...of velocity measurement depends on the ‘‘sharp- ness’’ of the gradient of spectral power versus frequency, so as ¹e/¹i increases we would expect the actual ... See full document

... Figure 1 shows a few examples of the electric poten- tial distributions reconstructed from the modeled (i.e., not observed) ionospheric plasma convection within the radar FOV. In these plots, ticks are drawn ... See full document

... by using the sidelobe- free matched filter code instead of the corresponding ordi- nary ...that due to randomness of the noise am- plitude created at different times, we see small fluctuations in the ... See full document

... close using in the standard AFIT RNR ...is due to the limitations of the DPO measurement ...a measurement with an artificially high noise ... See full document

... the scatter of individual velocity observations around the fitted value looks too broad in comparison with the standard ...and velocity observations contain errors which are not of statistical ... See full document

... However, due to the short pulse repetition period (in the order of milliseconds) at any instant, the radar receives detectable scattered signals not only from the pulse illuminat- ing the D-region but also ... See full document

... the scatter of points in ...RISR velocity of ± 500, ± 750, ± 1000, and ± 1500 m s −1 , similar to those for the LOS velocity compar- ...large velocity magnitudes is due to the broader ... See full document

... the measurement point in this project is the ...observer due to the Doppler ...variations due to TIDs are measured, while removing as many compo- nents of diurnal variations as possible, it was ... See full document

... future radar location. Works on IS radar construc- tion near Norilsk were interrupted in 1973 when Zherebtsov got his appointment as deputy director of the institute and moved to Irkutsk for the full-time ... See full document

... an incoherent scatter target, the posterior vari- ance of the estimated target can be used to determine how well a set of transmission codes ...an incoherent scatter radar transmission ... See full document

... Modern incoherent scatter programmes are now consider- ably more complex, using a variety of coding techniques and having much greater flexibility in the way that signal sam- ples are ...the ... See full document

... 1182 J. Porteous et al.: Automated detection of satellite contamination Acknowledgements. We are indebted to the director and staff of EISCAT for opening the facility and supplying the data. EIS- CAT is an international ... See full document

... the ionosphere, parts of which are detected by the radar receiving antenna. The received RF signals are band- pass-filtered and low-noise-amplified in the analogue front end and then transferred to the ... See full document

... Flat Incoherent Scatter Radar ...in errors over the direct extension of previously developed techniques and allows for the calculation of an error covariance ma- trix of the estimated ... See full document

... Radar observations of plasma density and temperature show indeed a correlation with the intense soft-particle flux region, but the radar measurements do not allow to resolve a further [r] ... See full document

... tail, due to the solar wind pressure and interaction with the ...or using specialized equipment. Nevertheless, due to the humanity’s ever- increasing reliance on this infrastructure, understanding of ... See full document

... is due to the combined magnetic declination-zonal wind ...source: incoherent scatter radar long-term ob- servations over Millstone ...the radar allows for a study of the ionospheric ... See full document

... The next question is timing of an individual Doppler ob- servation, when the pulse length during the impact can be taken as constant. An order-of-magnitude value of the sec- ond time derivative of range (see Sect. 5) ... See full document

... to using an UWB random noise waveform for radar ...AFIT's noise radar has made significant progress, the current architecture needs to be redesigned to meet the space constraints ... See full document

... considerable scatter and, on average, similar rate of the electron temperature increase with the electric field up to 100 mV m −1 as compared with previous ...be due to a stronger vibrational cooling at ... See full document