Method for processing original point trace condensation of broadband radar target

Abstract

The invention discloses a method for processing original point trace condensation of a broadband radar target. According to the method, a reference radial length L and a reference direction length W are set; the traces of points of the same target are merged in the radial distance direction; condensation is carried out on data of the traces, merged in the radial direction, of the points to obtain radial distance condensation points; the radial distance condensation points of the same target are merged on echo scanning lines in the adjacent directions; a background target is removed; sidelobe clutters are removed, direction condensation is carried out on the rest of the radial distance condensation points, and the direction parameter estimated value and the distance parameter estimated value of the same target are obtained. By means of the method, the radar original point trace data can be easily and quickly processed, the validity of point trace condensation and the accuracy of target parameter estimation are improved, and good essential data are provided for subsequent target tracing.

Description

technical field [0001] The invention relates to the field of radar signal processing, in particular to a method for cohesive processing of original traces of broadband radar targets, which is suitable for processing echo signals of broadband radar targets processed by constant false alarm detection. Background technique [0002] Radar is a basic radio detection device with the ability to detect targets all day and all day long. Early radars appeared in the 1930s and only had the function of detecting and locating targets. After decades of development, radar technology has made great progress, various new system radars are emerging, radar performance is constantly improving, and application fields are also expanding. Modern radar can detect various parameters of the target, and the measurement accuracy is getting higher and higher. Even some systems of radar have the ability to obtain the fine structure of the target. The technology of these advanced radars is broadband rada...

AI Technical Summary

Problems solved by technology

[0014] The disadvantage of prior art 1 is that the traditional point trace aggregation processing method for narrowband targets, whether based on target centroid or center calculation, is not suitable for processing the original point trace data of wideband targets

[0015] The second shortcoming of the existing technology: although some concepts and methods of the traditional narrowband target trace condensation processing have been used, and a method for wideband target original trace condensation processing has been formulated, due to the complexity of the wideband target trace characteristic appearance, it cannot be used The elimination of abnormal original traces in traditional technology includes the elimination of side lobe effects, which makes it difficult for them to formulate some criteria to eliminate abnormal data, resulting in low accuracy in the estimation of target parameters; and most of them use the point aggregation method to obtain the centroid Processing algorithm, resulting in a large amount of calculation and low processing efficiency

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