发明名称 |
Method for detecting and classifying helicopters |
摘要 |
To detect and classify a helicopter as a target by means of a radar system equipped with a Doppler filter bank, an initial determination is made as to whether the threshold value has been exceeded in a substantial number of the individual filters of the Doppler filter bank, and if so, the width of that amplitude band delimited by the highest and lowest amplitudes of the filter output signals is determined and a decision regarding the presence of a helicopter target is derived from the width of the amplitude band.
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申请公布号 |
US5231402(A) |
申请公布日期 |
1993.07.27 |
申请号 |
US19860900950 |
申请日期 |
1986.08.11 |
申请人 |
TELEFUNKEN SYSTEMTECHNIK GMBH |
发明人 |
LUDLOFF, ALBRECHT;MINKER, MANFRED;HAGEDORN, FRANK |
分类号 |
G01S7/41;G01S13/52 |
主分类号 |
G01S7/41 |
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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