Accession Number : ADA267077


Title :   Comparison of RADARC High-Frequency Radar Performance Prediction Model and ROTHR Amchitka Data


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Root, Benjamin T ; Headrick, James M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a267077.pdf


Report Date : 16 Jul 1993


Pagination or Media Count : 62


Abstract : Data collected with AN/TPS-71 radar has been used to validate the RADARC model. For the first ten days of January , April, and July, noon and midnight, the vertical ionograms, oblique backscatter soundings, radar ground backscatter amplitudes and noise levels have been compared with Model predictions. The differences between the Model and median ionospheric soundings are small enough to have negligible effect on predictions. The coverage predicted for oblique backscatter soundings agrees well with observed median data except for sporadic E effects which were under-estimated. Medians of observed ground backscatter agree fairly well with predictions. The actual noise that controlled radar performance was the most significant deviation from the model; all nighttime and January day noise was higher than that predicted; and this was due to 'multiplicative' noise.... Ionospheric Models, OTH RADAR, Skywave Transmission


Descriptors :   *OVER THE HORIZON RADAR , PREDICTIONS , RADAR , NOISE(RADAR) , IONOGRAMS , IONOSPHERIC MODELS , AMPLITUDE


Subject Categories : Active & Passive Radar Detection & Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE