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Secondary radar response code extracting and confidence beaconing algorithm

A technology of response code and secondary radar, which is applied in the direction of measuring device, radio wave reflection/re-radiation, utilization of re-radiation, etc., can solve problems without detailed instructions, and achieve real-time realization, small amount of computation, high effect of effectiveness

Inactive Publication Date: 2005-07-20
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0010] However, what kind of algorithm is used to realize the above criteria has not been explained in detail in the reference documents at home and abroad.

Method used

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  • Secondary radar response code extracting and confidence beaconing algorithm
  • Secondary radar response code extracting and confidence beaconing algorithm
  • Secondary radar response code extracting and confidence beaconing algorithm

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Embodiment Construction

[0051] An embodiment and steps of the present invention are given below.

[0052] We choose TI TMS320VC5409 DSP to program the entire confidence analysis algorithm, and the DSP reads in the corresponding data and stores them in the on-chip RAM according to the format given in Table 1.

[0053]First round of processing. Set all code values ​​to 0 and confidence to 1, that is, set all codes to H0 (when there is no pulse, it is all 0 with high confidence); in the first round of processing, each pulse is mainly generated The relevant information table of , the processing flow is shown in Figure 1; when a response pulse belongs to a certain frame and is related to the reference AMP of the frame, according to the above judgment criteria, the code may be H1 or L1. The codes of the cases are all 1, so here the code is first set to 1; then, in the second round of processing, it is judged whether it is H1 or L1, and the confidence degree of the response pulse is obtained.

[0054] The...

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Abstract

The invention provides a secondary radar answer code extracting and confidence interval marking algorithm, synthetically using position of answer pulse, sigma and Delta information and adjacent answer information, adopting an idea of establishing a pulse information list for each answer pulse, convenient to implement software programming. It has the characters of high processing efficiency, strong self-adapting ability, convenience for real-time implementation, etc. It can be used in processing answer signals for secondary radar, enemy-self identifier, and civil aviation management system.

Description

technical field [0001] The invention belongs to the field of radar signal processing, in particular to the response signal processing technology of monopulse secondary radar. Background technique [0002] In the secondary radar response signal processing, the response code extraction and confidence labeling, as the interface with the subsequent track processing, play a very important role. Accurate and efficient response code extraction and confidence analysis can provide reliable information for subsequent track processing. Information. [0003] The so-called response code extraction refers to determining the code value of each aircraft response. [0004] The so-called confidence labeling is to judge the attribution of each secondary radar response signal pulse, and give the possibility (high or low) that each pulse belongs to a certain frame. The existing technical literature research on confidence analysis is mainly limited to the discussion and research on the judgment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/28G01S13/74
Inventor 李玉柏蒋睿伍春杨晓飞
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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