Survey Analysis and area Based EditoR (SABER)

SABER is an efficient tool for processing, editing, updating, viewing and analyzing hydrographic survey data.

Survey Analysis and area Based EditoR (SABER) is an efficient tool for processing, editing, updating, viewing and analyzing hydrographic survey data. Leidos developed SABER to be one of the most flexible, robust data processing tools in the industry. The software was designed to efficiently and smoothly archive, display and process large data volumes associated with hydrographic surveys.

It can generate color-coded bathymetry, multibeam imagery mosaics, sonar imagery mosaics, survey coverage, contours, and smooth sheet plots. These products can contain annotated tracklines, selected soundings, and total propagate error values for your data. SABER has also fully integrated the Combined Uncertainty and Bathymetry Estimator (CUBE) algorithm, which allows you to generate CUBE Depth surfaces and Bathymetric Attributed Grids, all in compliance with the latest NOAA standards.

New in version 5.0 is an Automated Contact Detection (ACD) capability. ACD technology automates initial detection of objects protruding from the seafloor. The ACD workflow is composed of three distinct phases.

  • Detector — This phase automatically detects bottom contacts from side-scan sonar data including correcting the bottom tracking (altitude), and a sand-wave suppression filter. For each detection, parameters are extracted (e.g., shape and texture), and normalized length, width and height of each detection is measured. A cumulative list of detections is stored in an XML format file.
  • Neural Network — This phase applies a previously trained neural network to classify detections as legitimate or false.
  • Analyst Review — This phase allows the human to review the automatically detected contacts, classified as legitimate, overlain on the side-scan sonar record. The analyst may override automatic detections and measurements as necessary.

ACD Benefits

  • 90-95% probability of detection for objects that are 1m3 in size
  • 5-10% false alarm
  • Analyst review of the legitimate detections shortly after data acquisition
  • Improving consistency of detected contacts across a range of analysts
  • Significant reduction in post-processing effort
  • Correlation of side-scan detections with bathymetry data

Bathymetry data acquired from Autonomous Undersea Vehicle

  • Pressure-to-depth conversion accounting sea-water density and atmospheric pressure
  • Integration of post-processed mission navigation and orientation
  • TPU model supports bathymetry data acquired from an AUV
  • Generation of SVP from vehicle-based conductivity, pressure, and temperature measurements
  • Full swath recalculation from raw MBES observations, attitude, navigation and SVP

Ellipsoidal Referenced Survey (ERS)

  • Supports navigation formats from PosPac, SeaPath, and GrafNav
  • Quality control visualization of GNSS solutions, attitude, and water levels
  • Separation model development based on geoid model and in-situ GNSS observations
  • TPU model supports for ERS-based workflow


Data Processing

  • Create or initialize the analysis session
  • Generate the Hydrographic Management System Reports
  • Generate any required file lists and time windows
  • Edit the multibeam swath data with MVE
  • Generate tracklines and process all navigation data
  • Apply any necessary correctors (tides, sound velocity profiles, offsets, delayed heave)
  • Apply automatic ping and beam flag filtering

Data Analysis

  • Build, view, QA/QC and query gridded depth layers
  • Build and plot sonar coverage grids
  • Perform junction analysis on difference layers
  • Generate bathymetric contours
  • Generate selected soundings
  • Generate working plots of soundings and contours
  • Sonar imagery contact analysis
  • Complete final editing
  • Create final contours files
  • Create final soundings files
  • Total propagated error estimation
  • Coverage analysis on bathymetric model

Area Based Processing

  • Replaces labor intensive line by line interactive editing
  • View and edit all data in an entire area concurrently
  • Retain edits in full resolution native data files
  • Interfaces directly with target files and imagery data
  • Seafloor model computed using Combined Uncertainty and Bathymetry Estimator (CUBE)

Data Products

  • Plot final contours and tracklines
  • Plot final coverage plots
  • Create junction analysis reports
  • Create and plot the smooth sheet
  • Create and plot any profile plots
  • Create S-57 feature file
  • Data model in form of Bathymetric Attributed Grid (BAG)


  • Total propagated error estimation
  • CUBE processing
  • Coverage analysis on bathymetric model
  • Area based editing
  • Dividing larger survey areas into sub-areas allowing systematic processing
  • Editing, filtering, and smoothing of position data
  • Correcting for tidal variations, roll/pitch/azimuth offsets, and sensor mounting positions
  • Recalculation of depth data for different sound velocity profiles
  • Recalculation of multibeam alignment calibrations for roll/pitch/azimuth offsets, transducer and antenna mounting positions
  • Graphical display of gridded depth and coverage data for interactive analysis
  • Interactive and automatic editing of bad soundings
  • Generation of interim and final data products as interactive displays or hard copy plots
  • Generation of interim and final reports that summarize the data and document the processing procedures


SABER provides an intuitive approach and supports a standardized processing flow to ensure consistent results. The product helps streamline the effort required to produce data products and minimizes survey rework when these processes are applied in the shipboard environment. The MultiView Editor (MVE) allows operators to view and edit all the data in an entire area simultaneously and directly retain those edits in the full-resolution native data files.

A primary benefit of the SABER product is the ability to efficiently process massive data volumes using one software package. This provides the scientist with a seamless transition between the full-resolution swath-oriented data and geographically oriented data.

Red Hat Enterprise Linux 4 and Red Hat Enterprise Linux 5 are registered trademarks of Red Hat Inc., in the United States and/or other countries.

Technical Specifications

Operating System

Red Hat Enterprise 4, 5 & 6 ®, with all packages

Display Screen

1280 x 1024 at 24 bit depth


Bash shell

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