公开(公告)号：US06501705B1

公开(公告)日：2002-12-31

申请号：US09599234

申请日：2000-06-22

申请人： John J. Molini ,  Warren C. Hollis ,  Sung Hong

发明人： John J. Molini ,  Warren C. Hollis ,  Sung Hong

IPC分类号： H04B106

CPC分类号： G01S3/802 ,  G01S3/84

摘要： An underwater acoustic sensor system for detecting and efficiently displaying data from small, shallow-draft targets at high speeds in shallow or very shallow water. Sonar buoys transmit electrical signals representing sound pressure waves, which are processed to ascertain bearing and signature information for a detected object. A single display having a bearing history area, a frequency history area, and a bearing/frequency area, provide a system operator with efficient correlation between bearing and frequency data.

摘要翻译： 一种水下声学传感器系统，用于在浅水或浅水中以高速检测和有效地显示来自小型浅抽样目标的数据。 声纳浮标传输代表声压波的电信号，这些信号被处理以确定被检测物体的轴承和签名信息。 具有轴承历史区域，频率历史区域和轴承/频率区域的单个显示器为系统操作者提供轴承和频率数据之间的有效相关性。

公开(公告)号：US06418082B1

公开(公告)日：2002-07-09

申请号：US09599230

申请日：2000-06-22

申请人： Warren C. Hollis ,  by Mildred H. Hollis

发明人： Warren C. Hollis ,  by Mildred H. Hollis

IPC分类号： G01S380

CPC分类号： G01V1/3808 ,  G01S3/8036

摘要： A bottom moored and tethered directional frequency analysis and ranging (DIFAR) sensor system deployable in a wide range of water depths. The system includes a mooring platform for anchoring the system to the bottom surface of a body of water. A buoyant chamber containing a DIFAR sensor is tethered to the mooring platform at a pre-determined depth in the body of water. The DIFAR sensor includes two pairs of orthogonally oriented hydrophones and a compass for providing a directional magnetic reference signal. The tethered buoyant chamber is securely positioned such that hydrophones residing within the buoyant chamber are oriented in a plane substantially co-planer to the top surface of the body of water. By determining the angle between the directional magnetic reference signal and the hydrophones, the sensor system is able to compute heading information for a detected object. A transmitter is coupled to the DIFAR sensor for transmitting heading information detected by the DIFAR sensor to a receiver. The transmission can occur over a signal cable to a shore based receiver, or via a wireless radio frequency (RF) transmission.

摘要翻译： 底部系泊和系留方向频率分析和测距（DIFAR）传感器系统可部署在广泛的水深。 该系统包括用于将系统锚定到水体底部的系泊平台。 包含DIFAR传感器的浮力室以水体中预定的深度系在系泊平台上。 DIFAR传感器包括两对正交取向的水听器和用于提供定向磁参考信号的指南针。 拴系的浮力室被牢固地定位，使得驻留在浮力室内的水中听音器在与水体的顶表面基本上共同平面的平面中取向。 通过确定方向磁参考信号和水听器之间的角度，传感器系统能够计算被检测物体的标题信息。 发射机耦合到DIFAR传感器，用于将由DIFAR传感器检测到的航向信息传送到接收机。 传输可以通过信号电缆发送到岸基接收机，或通过无线射频（RF）传输。