Device and method for selecting signal, and radar apparatus
First Claim
1. A signal selecting device, comprising:
- a transceiver for repeatedly transceiving electromagnetic waves;
a target candidate detecting module for detecting a plurality of objects based on echo signals received by the transceiver;
a phase change amount calculating module for calculating a phase change amount between two echo signals from two positions of which distances from the transceiver are substantially the same but azimuths from the transceiver are different; and
an object selecting module for selecting an object among the plurality of objects detected by the target candidate detecting module in a first scan based on a phase change amount for the object, the object being the same object as an object selected by the object selecting module in a second scan that is performed before the first scan.
1 Assignment
0 Petitions
Accused Products
Abstract
A signal selecting device is provided. The signal selecting device includes a transceiver for repeatedly transceiving electromagnetic waves, a target candidate detecting module for detecting a plurality of objects based on echo signals received by the transceiver, a phase change amount calculating module for calculating a phase change amount between two echo signals from two positions of which distances from the transceiver are substantially the same but azimuths from the transceiver are different, and an object selecting module for selecting a predetermined object among the plurality of objects detected by the target candidate detecting module in a first scan based on a phase change amount of the object, the predetermined object being the same object as an object selected by the object selecting module in a second scan that is performed before the first scan.
-
Citations
12 Claims
-
1. A signal selecting device, comprising:
-
a transceiver for repeatedly transceiving electromagnetic waves; a target candidate detecting module for detecting a plurality of objects based on echo signals received by the transceiver; a phase change amount calculating module for calculating a phase change amount between two echo signals from two positions of which distances from the transceiver are substantially the same but azimuths from the transceiver are different; and an object selecting module for selecting an object among the plurality of objects detected by the target candidate detecting module in a first scan based on a phase change amount for the object, the object being the same object as an object selected by the object selecting module in a second scan that is performed before the first scan. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for selecting a signal, comprising:
-
repeatedly transceiving electromagnetic waves; detecting a plurality of objects based on received echo signals; calculating a phase change amount between two echo signals from two positions of which distances from an own ship are substantially the same but azimuths from the own ship are different; and selecting an object among the plurality of objects detected by a target candidate detecting module in a first scan based on a phase change amount of the object, the object being the same object as an object selected in a second scan that is performed before the first scan.
-
-
12. A radar device, comprising:
-
a transceiver for repeatedly transceiving electromagnetic waves via an antenna; a target candidate detecting module for detecting a plurality of objects based on echo signals received by the transceiver; a phase change amount calculating module for calculating a phase change amount between two echo signals from two positions of which distances from the transceiver are substantially the same but azimuths from the transceiver are different; an object selecting module for selecting an object among the plurality of objects detected by the target candidate detecting module in a first scan based on a phase change amount of the object, the object being the same object as an object selected by the object selecting module in a second scan that is performed before the first scan; and a display unit for displaying a radar image showing positions of the plurality of objects.
-
Specification