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US 6,618,001 B2Granted
Apparatus for detecting signal
AssigneeOki Electric Industry Co., Ltd.
InventorHideto Oura
Life of this patent
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Abstract
A radar signal detecting apparatus is provided. The radar signal detecting apparatus includes a coupler diverging a part of signal from received signal, a local oscillator outputting local signal, a mixer converting the diverged signal multiplied the local signal into low frequency signal and a detector detecting, a radar signal from the low frequency signal by using a threshold above side lobe.
Claims8
A radar signal detecting apparatus comprising:
- a coupler diverging a part of a signal from a received signal;
- a local oscillator outputting a local signal;
- a mixer converting the diverged signal multiplied by the local signal into a low frequency signal;
- and
- a detector detecting a radar signal from the low frequency signal by using a threshold above a side lobe of a radar and by using a detecting level range between the threshold and a level below the side lobe.
2 more elements
A radar signal detecting apparatus comprising:
- diverging means for diverging a part of a signal from a received signal;
- oscillating means for outputting a local signal;
- converting means for converting the diverged signal multiplied by the local signal into a low frequency signal;
- and
- detecting means detecting a radar signal from the low frequency signal by using a threshold above a side lobe of a radar and by using a detecting level range between the threshold and a level below the side lobe.
2 more elements
Dependencies are inferred from the claim text.