Radio frequency link, design method and device, and storage medium supporting ultra-long-distance transmission
A technology of radio frequency link and distance transmission, applied in transmission systems, radio transmission systems, electrical components, etc., to achieve the effect of wide application prospects
Active Publication Date: 2022-04-08
SPACE STAR TECH CO LTD
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[0033] figure 1 A flow chart of a radio frequency link design method supporting ultra-long-distance transmission provided by the embodiment of the present application, as shown in figure 1 As shown, the radio frequency link design method supporting ultra-long-distance transmission in the embodiment of the present application includes the following processing steps:
[0034] Step 101. Acquire the transmission properties of the signal transmission medium and the connection device of the transmission medium.
[0035] The transmission medium includes at least one of the following: a feeder line, a transmission cable, and a waveguide; in the embodiment of the present application, the transmission medium is a transmission cable, which may be a metal cable or the like.
[0036] The connecting device includes a coupler and a power splitter; in the embodiment of the present application, the coupler is a connector for connecting a transmission cable, which can connect the transmission ...
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The embodiment of the present application discloses a design method and device for a radio frequency link supporting ultra-long-distance transmission, a radio-frequency link supporting ultra-long-distance transmission, and a storage medium. The method includes: obtaining a signal transmission medium and a connection of the transmission medium The transmission properties of the device; according to the transmission properties, determine the corresponding relationship between the transmission distance of the transmission link composed of the signal transmission medium and the connecting device and the output noise; according to the carrier-to-noise ratio and linear gain required by the signal transmission quality , calculating the number of amplifying devices installed in the transmission link and the setting intervals between the amplifying devices, and arranging the amplifying devices in the transmission link according to the calculation results. The technical solution of the embodiment of the present application calculates the power and cumulative noise at the output ends of each amplifier step by step, adjusts the layout position of the amplifying device, satisfies the linearity of the link gain and guarantees the specified carrier-to-noise ratio of the receiving end at the same time; The linear gain and the balance point of the specified carrier-to-noise ratio have broad application prospects.
Description
technical field [0001] The embodiment of the present application relates to a design method and device for a radio frequency link supporting ultra-long-distance transmission, a radio-frequency link supporting ultra-long-distance transmission, and a storage medium, which are mainly used for long-distance high-loss radio frequency links in satellite ground systems Deployment is achieved. Background technique [0002] Carrier-to-noise ratio is the ratio of useful signal to noise power spectral density. Especially in long-distance high-loss link transmission, the deterioration of carrier-to-noise ratio is more obvious, which obviously affects the transmission efficiency and accuracy of the signal. [0003] In order to ensure the gain of the ultra-long-distance radio frequency link, multiple amplifying devices need to be arranged. However, if the amplifying devices are arranged too far ahead, the amplifying devices may be saturated and the signal may be distorted; and if the ampl...
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IPC IPC(8): H04B7/155
CPCH04B7/15564
Inventor 温志军王磊景新攀林广刘敏娄珂珂
Owner SPACE STAR TECH CO LTD