Radar ranging method, apparatus and radar level gauge
By superimposing echo signals and combining Rife interpolation and cubic spline interpolation, the hardware cost and efficiency problems caused by the fence effect in traditional radar ranging are solved, and efficient and accurate radar ranging is achieved.
CN121559534BActive Publication Date: 2026-05-08ZHEJIANG MEIYI INTELLIGENT SENSING TECH CO LTD +1
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Patent Information
- Application Number
- CN202610085370.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-22
- Publication Date
- 2026-05-08
- Estimated Expiration
- 2046-01-22
AI Technical Summary
Technical Problem
In traditional radar ranging methods, increasing the number of Fourier transform points to improve spectral resolution leads to increased hardware costs, increased design complexity, and longer signal processing time, resulting in reduced ranging efficiency.
Method used
By superimposing multiple echo signals reflected from the ranging target, a dual interpolation method of local fine Rife interpolation and global optimized cubic spline interpolation is adopted to significantly suppress noise, reduce picket fence effect error, and achieve efficient and accurate radar ranging.
Benefits of technology
It achieves efficient and accurate radar ranging, reduces computing power consumption and hardware costs, and effectively eliminates noise fluctuations and system errors.
✦ Generated by Eureka AI based on patent content.
Abstract
The application relates to the technical field of radar ranging, and discloses a radar ranging method, a radar ranging device and a radar level gauge.The method comprises the following steps: receiving multiple echo signals reflected by a ranging target, superimposing the multiple echo signals to obtain superimposed echo signals; screening multiple target spectrum lines from the spectrum of the superimposed echo signals; obtaining multiple interpolation points based on the multiple target spectrum lines and calculating an initial distance from the ranging target; screening multiple target interpolation points from the multiple interpolation points based on the initial distance; performing cubic spline interpolation based on the multiple target interpolation points to obtain a cubic spline interpolation function; and substituting the initial distance into the cubic spline interpolation function to obtain a target distance.The application can significantly suppress noise and improve the signal-to-noise ratio by superimposing multiple echo signals reflected by a ranging target, and can realize efficient and accurate radar ranging by adopting double interpolation of local fine Rife interpolation and globally optimized cubic spline interpolation.
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