Methods, apparatus, and media of determining and controlling RF system perception range

By adjusting the Loss path length of the transmitting and receiving devices in the RF system, combined with the SSNR index and mathematical model, the problems of expanding the sensing range and interference of the RF system were solved, achieving precise control and optimized deployment.

CN116709345BActive Publication Date: 2026-06-05PEKING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PEKING UNIV
Filing Date
2022-02-24
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to determine and expand the sensing range of RF systems, and they are easily affected by non-target activities, making precise control particularly difficult in complex environments.

Method used

By adjusting the LoS path length between the transmitting and receiving devices, the shape and area of ​​the sensing range boundary are adjusted. Combined with the sensing signal-to-noise ratio (SSNR) index, a quantitative mathematical model is established to optimize the device location to expand the sensing range or mitigate interference.

Benefits of technology

It achieves precise control of the sensing range of the RF system and effective mitigation of interference, expands the sensing range and optimizes equipment deployment, and is suitable for complex environments.

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Abstract

The application relates to a method, device and medium for determining and controlling the sensing range of an RF system, which specifically adjusts the sensing range of a transmitting device and a receiving device by adjusting the LoS path length between the transmitting device and the receiving device, and the adjustment mode comprises sensing range boundary shape adjustment or sensing range area adjustment; the sensing range boundary shape adjustment: as the LoS path length increases, the sensing range boundary increases from a small oval to a maximum oval, and then the middle of the oval is concave inward to finally form two smaller ovals respectively surrounding the transmitting device and the receiving device; the distance between the transmitting device and the receiving device is controlled and the sensing range is determined based on the change of the sensing range boundary shape; the sensing range area adjustment: as the LoS path length increases, the sensing range area first increases and then decreases, and there is a maximum value; the distance between the transmitting device and the receiving device is controlled and the sensing range is determined based on the maximum value of the sensing area.
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