发明名称 |
Digital MTI radar system - has digital compensator to correct phase instability, amplitude and timing |
摘要 |
<p>The radar system includes a radio frequency pulse transmitter (202) and two receivers (208, 219). The first receiver responds to echo signals and includes two phase detectors (209, 210) which provide an in-phase received component and a quadrature received component. The second responds to samples of radio frequency energy and includes two phase detectors (220, 221) providing an in phase transmitted component and a quadrature signal component. An analogue-to-digital converter (213) digitises the two quadrature and in-phase components, and a stabilisation unit (214) generates compensated phase detector signals. The unit includes a digital computer for evaluating given relationships between the phase detector signals and the in-phase and quadrature components.</p> |
申请公布号 |
FR2399035(A1) |
申请公布日期 |
1979.02.23 |
申请号 |
FR19770023376 |
申请日期 |
1977.07.29 |
申请人 |
INTERNAL STANDARD ELECTRIC CORP |
发明人 |
THOMAS HARBISON DONAHUE ET DAVID EMMETT HAMMERS;HAMMERS DAVID EMMETT |
分类号 |
G01S13/18;(IPC1-7):01S9/06 |
主分类号 |
G01S13/18 |
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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