Method for aggregating electromagnetic radiation target signal
A target signal and electromagnetic radiation technology, applied in the field of signal processing, can solve the problems of being unfavorable for the discrimination of different electromagnetic signals, automatic processing of unfavorable information, and high timeliness of processing information, achieving good engineering application prospects, reducing space-time complexity, The effect of easy engineering calculation
Inactive Publication Date: 2009-04-15
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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[0002] In view of the large number of electromagnetic radiation targets detected by electromagnetic radiation detection equipment, large differences in movement speed, and high timeliness requirements for processing information, the information processing system must be able to track targets in a timely and accurate manner, and there are the following main problems: [1] Fast-moving electromagnetic radiation The sampling rate of the radiation target is low, which is not conducive to the automatic processing of information
[2] Some electromagnetic radiation targets lack distance measurement, which is not conducive to the system to accurately grasp the target's space-time position
[3] The electromagnetic radiation signals of the target are relatively similar in frequency domain and space-time position, which is not conducive to the resolution of different electromagnetic signals
It is relatively easy to realize automatic processing of fixed targets and slow targets, but it is more difficult to realize automatic processing of fast moving targets
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[0023] The present invention adopts the method based on parameter comparison, according to the electromagnetic radiation target information detected by the sensor, and in combination with the performance of the sensor, compares the electromagnetic parameters of the electromagnetic radiation target and the corresponding time-space state and other information with the corresponding parameters of the target, Determine the attribution target of the signal according to the threshold rule, and complete the automatic signal aggregation process.
[0024] Such as figure 1 Shown, the present invention comprises the following steps: start step; Find the comparison similarity of signal and all known targets; Choose wherein minimum and next little comparison similarity; Use lower threshold (same target threshold) and upper threshold (different Target threshold), carry out logical judgment of signal attribution; compare the result processing, if the result is new target information, submit ...
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The invention provides a method for finding out the closest target and a closer target based on comparative similarity of signals and all targets. The conclusions that the signals do not belong to any target but belong to a certain target, the signals are fuzzy and the like, are made by a double threshold. As for the fuzzy judgment result, the comparative similarity difference of the closest target and the closer target is further computed and judged according to the selected difference threshold. Based on the double threshold judgment, the uncertainty is further reduced and the target resolution capacity is improved by additional judgment conditions. The invention has the obvious advantages of (1) being capable of automatically aggregating electromagnetic signals of rapid moving targets, and (2) realizing an engineering method.
Description
technical field [0001] The invention relates to a signal processing method, in particular to an electromagnetic radiation target signal gathering method. Background technique [0002] In view of the large number of electromagnetic radiation targets detected by electromagnetic radiation detection equipment, large differences in movement speed, and high timeliness requirements for processing information, the information processing system must be able to track targets in a timely and accurate manner, and there are the following main problems: [1] Fast-moving electromagnetic radiation The sampling rate of radiation targets is low, which is not conducive to the automatic processing of information. [2] Some electromagnetic radiation targets lack distance measurement, which is not conducive to the system to accurately grasp the target's space-time position. [3] The electromagnetic radiation signals of the target are relatively similar in frequency domain and space-time position, w...
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IPC IPC(8): G01S7/02G01S13/66
Inventor 许阳于永生王晓璇张桂林
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP