Dalyan
Description of the radar set, tactical-technical characteristics
Figure 1: Dalyan
Figure 1: Dalyan
| Specifications | |
|---|---|
| frequency: | X-Band |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | |
| pulsewidth (τ): | |
| receive time: | |
| dead time: | |
| peak power: | |
| average power: | 1 W, 0.1 W, 10 mW, 1 mW
(selectable) |
| instrumented range: | 36 NM (≙ 66 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | |
| hits per scan: | |
| antenna rotation: | >20 rpm |
| MTBCF: | 10 000 h |
| MTTR: | |
Dalyan
Dalyan is an X-Band navigation and search radar for submarines.
Dalyan’s Line Replaceable Units are basically the same as those of Alper, except for the antenna. Dalyan’s antenna is capable of withstanding 60 Bars of hydrostatic pressure, an essential feature for submarine radar, and it also has low RCS characteristics. A frequency selective surface radome with low insertion loss can also be employed to further reduce the RCS, without altering the antenna characteristics.
The antenna is 1 m long, employing a horizontally polarized cosecant-squared shaped beam tilted to the horizon with respect to the broadside of the array aperture in the elevation plane, directing maximum energy to the horizon. In order to improve the direction finding capability in the azimuth plane, a monopulse beamforming structure is employed.
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