Elevation error estimation method and device, electronic equipment and storage medium
An error estimation and elevation technology, which is applied in the field of electronic equipment and storage media, elevation error estimation methods, and devices, can solve the problems of corner reflectors such as volume, weight, low signal-to-noise ratio, and difficult layout, and achieve widening of the frequency band. high precision effect
Active Publication Date: 2021-03-16
AEROSPACE INFORMATION RES INST CAS +1
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Both methods have their own advantages and disadvantages; the point target calibration method can improve the calibration accuracy by improving the signal-to-noise ratio (increasing the point target RCS), but the number distribution is limited, and the L-band 3m corner reflector has a large volume and weight , the layout is very difficult, and the calibration frequency is limited by the revisit period of the calibration field; the distribution target has a wide range and does not need manual layout, but its signal-to-noise ratio is generally low, and its reference elevation accuracy is affected by the load band penetration and signal Effect of Noise Ratio Decoherence
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[0057] In order to make the purpose, features, and advantages of the application more obvious and understandable, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0058] see figure 1 , figure 1 A schematic flow chart of an elevation error estimation method provided by an embodiment of the present application, the method includes the following steps:
[0059] S101. Obtain the error on the measuring device;
[0060] S102. Calculate the reference elevation error introduced by the penetration characteristics of the distributed targets, a...
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The invention provides an elevation error estimation method and device, electronic equipment and a storage medium. The elevation error estimation method is applied to the technical field of radar detection and comprises the steps of obtaining an error on measurement equipment, calculating a reference elevation error introduced by the penetration characteristic of a distributed target, calculatinga reference elevation error introduced by signal-to-noise ratio decoherence, and estimating a final elevation error according to the error on the measurement equipment, the reference elevation error introduced by the penetration characteristic of the distributed target and the reference elevation error introduced by the signal-to-noise ratio decoherence.
Description
technical field [0001] The invention belongs to the technical field of radar detection, and in particular relates to an elevation error estimation method, device, electronic equipment and storage medium. Background technique [0002] Spaceborne formation interferometric synthetic aperture radar (InSAR, Interferometric Synthetic ApertureRadar,) system is a new generation of spaceborne earth observation system that combines satellite formation technology and InSAR technology. Compared with the traditional single-satellite heavy orbit InSAR satellite system, the spaceborne Formation InSAR has the characteristics of high data availability, strong echo coherence, and high product accuracy. Compared with the single-satellite platform dual-antenna InSAR system, it has the characteristics of flexible formation baseline configuration, engineering implementation difficulty and low cost. With the continuous improvement of quantitative application requirements, baseline calibration tech...
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IPC IPC(8): G01S13/88G06F30/20
CPCG01S13/882G06F30/20
Inventor 齐阳洪峻王爱春闵祥军潘志强王宇杜少岩邱天邢楷初牟静雯
Owner AEROSPACE INFORMATION RES INST CAS