Radar apparatus and signal processing method
First Claim
1. A radar apparatus capable of emitting a transmission wave relating to a transmitting signal which is frequency-modulated, and receiving a reflection wave coming from a target at which the transmission wave is reflected as a receiving signal, to derive at least position information of the target based on the receiving signal, the radar apparatus comprising:
- a deriving unit configured to derive a plurality of fluctuation values of a signal level of the receiving signal for a stationary target among the targets;
a calculating unit configured to calculate a fluctuation integrated value by integrating the plurality of fluctuation values of the signal level of the receiving signal; and
a judging unit configured to judge the stationary target as a target other than a control subject if the fluctuation integrated value is below a predetermined threshold.
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Accused Products
Abstract
There is provided a radar apparatus capable of emitting a transmission wave relating to a transmitting signal which is frequency-modulated, and receiving a reflection wave coming from a target at which the transmission wave is reflected as a receiving signal, to derive at least position information of the target based on the receiving signal. A deriving unit derives a fluctuation value of a signal level relating to the receiving signal for a stationary target among the targets. A calculating unit calculates a fluctuation integrated value integrated by the fluctuation value. A judging unit judges the stationary target as a target other than a control subject if the fluctuation integrated value is below a predetermined threshold.
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Citations
10 Claims
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1. A radar apparatus capable of emitting a transmission wave relating to a transmitting signal which is frequency-modulated, and receiving a reflection wave coming from a target at which the transmission wave is reflected as a receiving signal, to derive at least position information of the target based on the receiving signal, the radar apparatus comprising:
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a deriving unit configured to derive a plurality of fluctuation values of a signal level of the receiving signal for a stationary target among the targets; a calculating unit configured to calculate a fluctuation integrated value by integrating the plurality of fluctuation values of the signal level of the receiving signal; and a judging unit configured to judge the stationary target as a target other than a control subject if the fluctuation integrated value is below a predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10)
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9. A signal processing method of emitting a transmission wave relating to a transmitting signal which is frequency-modulated, and receiving a reflection wave coming from a target at which the transmission wave is reflected as a receiving signal, to derive at least position information of the target based on the receiving signal, the signal processing method comprising:
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deriving a plurality of fluctuation values of a signal level of the receiving signal for a stationary target among the targets; calculating a fluctuation integrated value by integrating the plurality of fluctuation values of the signal level of the receiving signal; and judging the stationary target as a target other than a control subject if the fluctuation integrated value is below a predetermined threshold, wherein the deriving, calculating and judging are performed by a processor.
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Specification