DETECTION FROM LONG RANGEThe main sonar sensor of the submarines is bow array sonar; the forms of array are spherical or cylindrical. The array aperture of these sonars are narrow and generally operate higher frequency than 1 kHz. In the FAS sensor, since the receiving hydrophones are mounted along the submarine hull, the array aperture increases, thus, high detection performance is obtained by operating at low frequency. |
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INCREASED ARRAY APERTUREFlank array sonar sensors mounted symmetrically on the port and starboard side of the submarines provide excellent detection characteristics at low frequencies thanks to the icreased array aperture. |
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TECHNICIAL SPECIFICATIONS
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