船用导航雷达的任务,在于探测各种船舶、海岸线、导航标志、浮冰以及其他目标,并对它们进行仔细观察。船用导航雷达能够执行各项导航任务,并且能在下列各种航行条件下应用,例如,在公海上,在近海域内,在狭窄的航道上以及在浮冰块间行驶,等等。雷达探测方法,是基于无线电波对各种障碍物(目标)的反射现象,而这些目标正位于电波的传播路径上。船用导航雷达的基本部件包括:发射机,接收机,天线装置和指示器。大功率的振荡脉冲先由发射机产生,再由天线辐射出去。天线在水平面旋转时具有方向性辐射特性。无线电 The mission of a marine navigation radar is to detect and monitor various ships, coastlines, navigation signs, ice floes and other targets. Marine navigation radars are capable of navigational tasks and can be used under a variety of navigational conditions such as on the high seas, in the open sea, on narrow waterways and between ice floes, and so on. Radar detection methods are based on the reflection of radio waves on various obstacles (targets), which are located on the path of the radio waves. The basic components of a marine navigation radar include a transmitter, a receiver, an antenna device and an indicator. High-power oscillator pulse generated by the transmitter, then radiated by the antenna. Antennas have directional radiation characteristics when rotated horizontally. radio