CCS Ultra Short Baseline USBL Underwater Positioning System
Cost-effective
Features
1 . Ultra-short Baseline Underwater Acoustic Positioning System
(USBL)
ITrack UB Series Ultrashort Baseline Underwater Acoustic
Positioning System (USBL) is based on underwater acoustic broadband
spread spectrum technology and high-precision time synchronization
technology, which significantly improves the resistance of
multipath interference and hull noise.
2 . Long Baseline Underwater Acoustic Positioning System (LBL)
ITrack LB series LBL system uses transponder arrays placed on the
seabed to locate the target, and uses spherical intersection to
achieve high-precision positioning of the target. ITrack LB 8000 is
newly designed LBL based on underwater acoustic broadband spread-
spectrum technology.
Technical parameter
iTrack UBSeries Ultrashort Baseline Systems
| System type | UB1000 | UB3000 |
| Effective range | 1500m | 3000m |
| Positioning accuracy | ≤0.5m＋1.2%D(D is diagonal) | ≤0.5m＋1%D(D is diagonal) |
| Minimum positioning interval | 1.5s |
Relative Speed of Transmitter
and Voice Head | ≤5nodes |
| Sound head working depth | 50m |
| Operating depth of transponder | 1000m | 2000m |
| Operating Frequency of Voice head | 20-28KHz | 15-25KHz |
| Operating frequency of transponder | 20-28KHz | 15-25KHz |
| Underwater standby time of transponder | 120days |
| Working temperature | －5℃－70℃ |
| Sound head size | 456mm×324mm(D) | 375mm×232mm |
| Head weight | 30kg | 12kg |
| Transponder size | 400mm×70mm(D)) | 400mm×70mm(D) |
| Transponder weight | 2kg | 2kg |
iTrack LB
| Product model | LB1000 | LB3000 | LB8000 |
| Effective range | 1000m | 3000m | 8000m-10000m |
| Positioning accuracy | Better than 1m | Better than 3m | Better than 10m |
| Minimum positioning interval | 1.5s | 1.5s | 1.5s |
Relative velocity between transponder
and positioning target | ≤5nodes | ≤5nodes | ≤5nodes |
| Working depth | 1000m | 2000m | 6000m |
| Working frequency | 20-28KHz | 15-25KHz | 8-16KHz |
Underwater standby time of
transponder | 120days
(Standard) | 180days
(Standard) | 1year
(Standard) |
| Working temperature | －5℃-70℃ | －5℃-70℃ | －5℃-70℃ |
| Size | 1000px ×175px(D) | 1000px ×200px(D) | 1500px ×250px(D) |
Performance advantages
Broadband Spread Spectrum Signal Processing Technology
It has good anti-noise and frequency selective fading ability,
strong multi-path suppression ability and low bit error rate. In
the long-distance positioning and communication, it can still
maintain good performance. The networking mode between the devices
is flexible and easy to expand.
cdma
Code Division Multiple Access (CDMA) technology simplifies the
whole system planning and effectively improves the spectrum
utilization because of its frequency reuse characteristics. It
realizes the simultaneous location of grouping and multi-user.
Low Power Consumption and High Reliability
The system has compact structure, light design and mature hardware
design, which ensures that the system runs steadily for a long time
in limited space.
Multiple working modes
Ultra-short baseline system also has complete long baseline
function. In actual operation, the hybrid baseline mode combining
ultra-short baseline and long baseline can be used, taking into
account both real-time and accuracy.
Compatible with a variety of peripheral sensors
Ultra-short baseline system has the function of attitude
compensation, which can correct and compensate the measurement
deviation caused by the attitude change of the acoustic array
installation platform. Support mainstream attitude sensor, inertial
navigation system, GNSS system, sound velocity profiler.
Transponder
Using low power technology, it can stand by and work underwater for
a long time. It supports active positioning (beacon mode) and
passive positioning (response mode). Compatible with ultra-short
baseline and long baseline modes.
Underwater positioning software
The underwater positioning software independently developed by
China Haida, based on Windows operating system, has complete
acoustic positioning (ultra-short baseline, long baseline, mixed
baseline) and display functions, and can be customized according to
customer needs.
