The GEORADAR-EXPERT software system implements a full set of GPR data processing options, which is included in every professional georadolocation software. In other words, the GEORADAR-EXPERT has everything that a GPR specialist is used to working with.

Differences

The difference between the GEORADAR-EXPERT software system and software products from other manufacturers is the availability of specialized algorithms, the use of which brings the quality of GPR data processing to a new level. The GEORADAR EXPERT includes the following specially designed options:

• Automated BSEF (Back-Scattering Electromagnetic Field) analysis. It makes the transition from the representation of data on the subsurface environment in the form of a set of amplitudes of reflected signals in the form of a radarogram to the characteristics of this environment and the wave field reflected from it in the form of an attribute section. This representation makes the result of processing GPR data more understandable. BSEF analysis works effectively in areas of high noise located in the lower part of the GPR profile, which allows you to increase the depth of the GPR survey. Along with this, BSEF analysis allows obtaining information about the structure of the studied subsurface environment even under conditions of a smooth change in its electrophysical characteristics, i.e. when reflections from the boundaries of layers are absent on the GPR profile. The use of automated BSEF analysis provides the specialist with more opportunities to study complex subsurface environments.
  
  
• B-Detector (Boundaries Detector). This method is designed to suppress interference and increase the vertical resolution of the GPR profile, which makes it easier to distinguish nearby, vertically, reflections from the boundaries of subsurface layers. Using B-Detector, the user increases the frequency and spectrum width of the GPR profile signals, thereby reducing the duration of these signals and increasing the degree of detail of the GPR profile. As a result of processing by the B-Detector method, the GPR profile obtained using a low-frequency antenna looks as if the frequency of the GPR antenna for recording this GPR profile was tuned to a frequency several times higher than the actual frequency of the antenna. Compared to the original GPR profile, the vertical resolution of the GPR profile after processing by the B-Detector method is several times higher. If necessary, the B-Detector method can lower the central frequency of the GPR profile signals.
  
  
• Method for decomposing a radarogram into components. This is not a wavelet decomposition of signals, although it is also implemented in the GEORADAR-EXPERT. This method converts a signals matrix of GPR profile into a set of matrices. Each matrix from this set contains only one unique type of reflected waves. The user discards the matrices with those types of waves, which he defined as interference, and then summarizes the remaining matrices. Thus, interference are excluded from the GPR profile signals. Using the same method, it is possible to remove diffracted reflections, including air ones, leaving behind only the boundaries of the layers on the radarogram. This is useful, for example, for road research. Or vice versa, you can remove all the boundaries of the layers, leaving only diffracted reflections. For example, to better detect reinforcement in a concrete structure.
  
  
• Statistical analysis module. This module is intended to summarize the results of GPR profiling and to better presentation the variability of the electrophysical characteristics of the GPR profile. Using the results of statistical analysis, presented in the form of tables and graphs, it is possible to establish a relationship between the physicomechanical characteristics of the investigated subsurface environment (for example, soil or building structures) and various statistical indicators. Thus, a feature set is created that can be used in the future to assess the state of similar objects. Statistical data sources are GPR profiles, attribute sections, which are calculated based on the results of BSEF automated analysis, and slices of the 3D assembly. If the user has drawn the boundaries of the layers on the GPR profile, on the attribute section or on the 3D assembly slice, the statistical indicators are calculated inside each layer, along the boundary of each layer and for the whole object, without regard to separation into layers. Using the statistical analysis module implemented by GEORADAR-EXPERT raises the quality of GPR research results to a new, higher level.
  
  
• Flaw detection module of building structures. Flaw detection of concrete and reinforced concrete building structures is based on the identification of zones on the section with abnormal deviations of the values of the Q-factor attribute. Flaw detection results are saved in the form of a section of the attribute, on which the defective zones are highlighted, and a defective list, in which for each GPR profile a quantitative and qualitative assessment of the state of the object is given, during the study of which one or another profile is obtained.
  
  
• 2D data summation module. Designed to summarize sections of heterogeneous attributes or cross-sections of a 3D assembly. As a result of summation, artifacts caused by the accumulation of errors in the process of collecting and processing GPR information are eliminated, and the model of the subsurface medium is restored from summation elements (attribute sections or cross-sections of a 3D assembly), each of which contains only some of the useful information.
  
  
• Converting a radargram image from a graphic format to a full-fledged GPR profile format. The need for such conversion may arise when the GPR profiling data file is lost, and there is only an image of this profile on paper or on the page of an electronic document. As a result of the conversion, the user gets the opportunity to apply to the GPR profile all signal processing options and all types of GPR data analysis implemented in the GEORADAR EXPERT.