sonar range

Sound as the most effective physical means of long-range underwater detection and communication. Currently international and domestic has developed a variety of sonar equipment ( such as side-scan sonar, synthetic aperture sonar, self-propelled variable depth sonar, etc.) for detecting underwater targets.

声是水下远距离探测、通讯的最有效的物理手段，目前国际国内已发展装备了各种声纳（如侧扫声纳、合成孔径声纳、自航式变深声纳等）用于探测水下目标。

A resolution for sonar beam simulation was arose in 3D space built with OpenGL, given calculation models for both the target range and level of sound reflection, and how to promote the reality of the simulation image.

在OpenGL实现的三维场景中，建立三维空间中声纳波束仿真方案，给出了探测距离和回波强度两个关键问题的仿真算法，讨论了提高显示真实度的方法。

With the development of acoustic stealth technology, the noise and target strength of underwater target significantly reduced, and the sonar operating range is decreasing accordingly.

现阶段由于声隐身技术的发展，水下目标的辐射噪声和目标强度都大幅降低，声纳的作用距离也随之下降。

Sonar to control. The bottom is rising. Range one thousand yards to the continental shelf.

声纳呼叫驾驶室. 海底坡度开始抬升, 距大陆架一千码.

Long-range and short-range side-scan sonar

长距离和短距离侧扫描声纳

Bistatic sonar will take a significant part in field of future sonar research, as it has advantages as: larger detection range, better hiding ability, flexible range for configuration, anti-interference and mobile ability, etc, when compared with single base sonar system.

双基地声纳与单基地声纳相比，具有探测范围大、隐蔽性好、配置灵活、抗干扰能力强、机动灵活等优点，因此双基地声纳成为未来声纳研究的热点。