A rapid graphical technique for obtaining radar data time history for close earth orbits

Radar tracking parameters and contact time errors from graphic estimation of radar tracking coverage of near earth orbit

Requirements for tracking radar for falling spheres

Error analysis on radar tracking of falling sphere

Range residuals in VHF radar tracking

Range residuals of very high frequency radar tracking data of ionospher

The tone range/telemetry interferometer tracking system for support of sounding rocket payloads

Combined range rate and telemetric interferometer system for radar tracking of scientific sounding rocket

Falling sphere-radar mathematical simulation techniques Final report, 15 Dec. - 15 Aug. 1965

Computer program for describing falling sphere trajectory and conversion of sphere trajectory into simulated radar tracking dat

RTCC requirements for mission G - Landing site determination using onboard observations, part 2 Final report

Computer programs for evaluation of telemetered rendezvous radar tracking data of orbiting command module and lunar module landing site determinatio

A comparison of FPS-16 and GMD-1 MEASUREMENTS and methods for processing wind data. Phase II - Analysis of time variability of atmospheric parameters Final report

Comparison of FPS-16 and GMD-1 radar tracking and radiosonde measurements and methods for processing wind data - time variability of atmospheric parameter

Investigation of new radar-data-reduction techniques used to determine drag characteristics of a free-flight vehicle

An investigation was conducted of new techniques used to determine the complete transonic drag characteristics of a series of free-flight drop-test models using principally radar tracking data. The full capabilities of the radar tracking and meteorological measurement systems were utilized. In addition, preflight trajectory design, exact kinematic equations, and visual-analytical filtering procedures were employed. The results of this study were compared with the results obtained from analysis of the onboard, accelerometer and pressure sensor data of the only drop-test model that was instrumented. The accelerometer-pressure drag curve was approximated by the radar-data drag curve. However, a small amplitude oscillation on the latter curve precluded a precise definition of its drag rise

Inexpensive, large-diameter, radar tracking and calibration spheres

Plastic models of polystyrene beads are produced to within 0.02 cm accuracy, in various diameters designed to meet exact requirements of particular radar system frequency spectrum. They are inexpensive and do not require special handling imposed on metal spheres

Enhanced monopulse radar tracking using empirical mode decomposition

Monopulse radar processors are used to track targets that appear in the look direction beamwidth. The target tracking information (range, azimuth angle, and elevation angle) are affected when manmade high power interference (jamming) is introduced to the radar processor through the radar antenna main lobe (main lobe interference) or antenna side lobe (side lobe interference). This interference changes the values of the error voltage which is responsible for directing the radar antenna towards the target. A monopulse radar structure that uses filtering in the empirical mode decomposition (EMD) domain is presented in this paper. EMD is carried out for the complex radar chirp signal with subsequent denoising and thresholding processes used to decrease the noise level in the radar processed data. The performance enhancement of the monopulse radar tracking system with EMD based filtering is included using the standard deviation angle estimation error (STDAE)