A Guide to Basic Pulse-Radar Maximum-Range Calculation. Part 1. Equations, Definitions, and Aids to Calculation

Radar/Radio Tropospheric Absorption and Noise Temperature

“…The work described updates earlier work begun in 1958, described in various NRI, reports and other writings (2)(3)(4)(5)(6)(7)(8). The original work (2,4,6) resulted in curves plcttcd manually from manual calculations for frequencies from 100 MHz to 10 GHz.…”

“…The original work (2,4,6) resulted in curves plcttcd manually from manual calculations for frequencies from 100 MHz to 10 GHz. Later (7,8), the NRL NAREC digital computer was used to recalculate the absorption and noise temperature-more exactly and to extend the frequency range to 100 GHz. However in that work (as in the earlier work) the "centroid approximation" of Van Vleck (9) was used to calculate the oxygen absorption; hence the results were not accurate in and near the 60-GHz oxygen resonances, that is, in the region from about 50 to 70 GHz.…”

Applications of Structural Synthesis of Programs

“…A specification of the radar coverage model uses classes of radars, i.e. sets of equations and parameters that describe characteristics of certain radar device and its properties of propagation of electromagnetic radiation (see details in [3]). There are also classes that describe attenuation of electromagnetic energy in atmosphere and models for different meteorological conditions such as rain, fog and clouds that can affect to the propagation of radar waves.…”

Multichannel Receiver Characterization for Adaptive Array Applications. Phase 3: Assessment of the Bistatic Receiver Testbed as a Measurement Tool for Clutter Phenomenology

“…The signal can be modulated to distinguish the calibration signal from the surrounding clutter and sophisticated tools are available to provide both amplitude and Doppler modulation simulating target motion [16].…”