| 发明名称 |
Shipboard point defense system and elements therefor |
| 摘要 |
A radar receiver is shown wherein the frequency of a first local oscillator is changed to bring an intermediate frequency signal representative of a moving target into frequency coincidence with a signal from a reference oscillator of fixed frequency.
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| 申请公布号 |
US6630902(B1) |
申请公布日期 |
2003.10.07 |
| 申请号 |
US19770823888 |
申请日期 |
1977.07.28 |
| 申请人 |
RAYTHEON COMPANY |
发明人 |
FENTON ANDREW F.;SHOVLIN THOMAS D. |
| 分类号 |
F41F3/04;F41G7/22;F42B10/64;F42B15/01;G01S7/03;G01S13/02;G01S13/22;G01S13/30;G01S13/42;G01S13/44;G01S13/72;G01S13/78;G01S13/86;G01S13/87;(IPC1-7):G01S13/50 |
主分类号 |
F41F3/04 |
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