Research on key technologies for Ka high-throughput satellite communication in hydraulic applications
In recent years,the hydraulic industry has begun applying Ka high-throughput satellite communication(Ka HTS)in areas such as water monitoring,emergency rescue,and beyond-line-of-sight data transmission.However,challenges such as significant rain attenuation remain.Key technologies for mitigating rain attenuation in Ka HTS include adaptive coding and modulation(ACM)and ultra-low signal-to-noise ratio(SNR)communication.A satellite link budget method is used to simulate and analyze the rain attenuation resistance of these two technologies in the Panjiakou Reservoir.Results indicate that systems without these technologies exhibit a rain attenuation resistance of only 0.5 dB,with communication failing shortly after rainfall begins.In contrast,systems employing these technologies achieve resistance levels of up to 20.0 dB,maintaining uninterrupted communication under rainfall intensities of 25 mm/h.To enhance the reliability of satellite communication and support the high-quality development of the hydraulic sector,it is essential to adopt satellite communication systems with excellent ACM range and ultra-low SNR communication capabilities for Ka HTS hydraulic applications.
Ka high-throughput satellitesatellite communicationhydraulic applicationsrain attenuationadaptive coding and modulationultra-low SNR
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维普
