Interference due to hydrometeor scatter on satellite communication links

Intersystem interference due to hydrometeor scattering on satellite downlink signals in tropical locations

“…Several attempts have been made in the past to quantify interference levels either by the direct measurement or by simulation. Among such efforts are Crane, (1974), Awaka, (1989, Olsen et al, (1993), Holt et al, (1993), and Capsoni and D'Amico, (1997). The efforts yielded good results in the temperate regions.…”

Analysis of Bistatic Scattering Due to Hydrometeors on SHF and Ehf Links in a Subtropical Location: A Comparative Study Based on the Rain Cell Models

“…Below this level is the rain region where attenuation and scattering of the wanted and the interfering signals occur. Beyond the 0 • C boundary, is the ice region where Z decreases at the rate of 6.5 dB/km [9,12]. The rain cell has a cylindrical symmetry within the horizontal cross-section, where the rainfall rate is assumed to vary exponentially at points x and y and can be expressed as:…”

“…The calculations for a melting layer was based on the rain height within the common volume where scattering and attenuation dominates the core rain cell and assuming only attenuation in the exponential cell surrounding the common volume. The melting layer calculation has been based on the method used by [9] with the Z-R relation in the rain just below the melting layer to point rain rate R on the ground as 461R 1.31 [18]. Scattering cross sections and attenuations for the assumed water-related snow spheres were obtained as discussed earlier in Section 2.…”

“…The subject on the impact of interference studies has received much attention either by the direct measurement or by simulation mostly at the temperate region among which are the works of [1,3,[7][8][9][10][11] to mention but a few. Also, the tropical region is not exempted with most of the work done in Nigeria by [2, 4-6, 12, 13].…”

Design of a Millimeter Wave Data Link for a Radar Guided Missile

“…These improvements are summarized in Table 3. [31]. The term "coordination contour" refers to a closed curve drawn around the planned location of an earth station.…”