发明名称 |
Method and apparatus for recognising a radar target |
摘要 |
A method of recognizing a radar target comprises producing a sequence of Doppler spectra of radar returns form a scene and producing therefrom a sequence of Doppler feature vectors for a target in the scene. Hidden Markov modelling (HMM) is then used to identify the sequence of Doppler feature vectors as indicating a member of a particular class of targets. HMM is used to identify the sequence of Doppler feature vectors by assigning to each feature vector an occurrence probability by selecting a probability distribution or state from a set thereof associated with a class of targets, multiplying the occurrence probabilities together to obtain an overall probability, repeating for other probability distributions in the set to determine a combination of probability distributions giving highest overall probability for that class of target, then repeating for at least one other class of targets and selecting the target class as being that which yields the highest overall occurrence probability. |
申请公布号 |
AU7265401(A) |
申请公布日期 |
2002.02.05 |
申请号 |
AU20010072654 |
申请日期 |
2001.07.23 |
申请人 |
THE SECRETARY OF STATE FOR DEFENCE |
发明人 |
MOHAMMED JAHANGIR;KEITH MICHAEL PONTING |
分类号 |
G01S7/292;G01S7/41;G01S13/524;G06K9/32;G06K9/62 |
主分类号 |
G01S7/292 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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