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Исключение аномальных отсчетов.

Anomalous samples elimination.

filharf PEP-клиент.


Designation

Soluble problems and method

The program is intended for deleting (correction) of anomalous samples in traces.


Interaction with other programs

The program is PEP-client. Thus it is started from under the shell of the package execution program pktexec, which gives tools for setting the parameters, control of execution of the program and viewing the protocol of program operation.

Description

Session

Setting the parameters and start of the program are performed from under the shell of the package execution program pktexec. The standard session consists of the following steps:
  1. Start of the program from the menu of the package VSP
  2. Setting the project with the data directory containing initial modification (menu item File - > Project...)
  3. Setting the input and output modifications
  4. Setting the coefficient of the Hara filter. This coefficient sets the maximum exceeding on amplitude of two adjacent samples. At exceeding it the sample is considered anomalous. Usually coefficient is > 2 and < 1500.
  5. Switching on the function of double running. If there are many anomalous samples or they are near each other, the first running of Hara filter needs to be fulfilled in the wide window, and then repeatedly in narrow. For this purpose it is necessary to switch the "On" button.
  6. Start of the program on execution (button Start in the toolbar or the menu item filharf - > Start).
  7. To monitor the resulting modification it is necessary to press the View button near the name of output modification on the

  8. panel of results.

    To view the protocol of execution of the program it is necessary to press the View log button in the
     toolbar or to select the menu item filharf - > View log.

  9. To escape the environment of the packet execution program it is necessary to click the button Exit in a toolbar or to select the menu item File - > Exit.

Parameters of processing

Input parameters (panel Parameters)

Name: Data modification for filharf

Type: nmod_s
Description: Name of the input modification
Name: Resulting data modification

Type: nmod_e
Description: Name of the output modification. The name should be given in the form of  Sxxx, Rxxx, Dxxx, where xxx are any printed symbols.
Name: Treshold multiplyer for anomallous samples

Type: float
Description: Coefficient of exceeding of the anomalous value above normal sampling.

Information of an operating time of the program (panel Runtime)

Name: Current cable depth, m

Type: float
Description: current cable depth of the processed traces

Parameters of results (panel Results)

Name: Resulting data modification

Type: nmod_s
Description: Name of the output modification
Name: Count of all input traces

Type: int
Description: the counter of input traces
Name: Count of anomales samples

Type: int
Description: the counter of anomalous samples, which were replaced by average value of adjacent samples.

User interface

For detailed acquaintance with user interface of the package execution program, see the description of the program  pktexec. An example of the window of the shell with the active panel of input of parameters is shown below:


Input data

Traces

All traces of the given modification are moved to the input of the program


Output data

Traces

All actual traces are written down to the resulting file with a name of output modification. In these traces the values of samples
are corrected, if for them the inequality of a Hara filter is fulfilled.


Requirements to the environment

Operational environment

The program gets the name of the operating project through the variable of environment PROJECT. If the program is started
from under the shell, this condition is fulfilled by selection of the operating project.

The program determines the location of the system files of the package from a variable VSPHOME, defined in the user`s
profile or in the file setup in a home directory of the user of the package.  In the file setup the given variable can appear also
under the name of VSP.


Used files

The program searches for the definition of parameters in the files $VSPHOME/etc/gain.pep and $VSPHOME/etc/vsp.pep.

The user`s home directory should contain a setup file. This file should contain paths to the directories of data, jobs and
protocols of execution of the projects and also paths to the system files of theVSP package. 


Other requirements

Other requirements are defined by the shell of the packet execution program pktexec.


Messages to the user

Bringing messages to the notice of the user

All messages are moved to the standard stream of errors. If the program is started from under the interactive shell, the
messages are saved to the file of the protocol of the transmission of the job LOG/$PROJECT/filharf-#.log. The messages of
classes EL_FATAL and EL_ERROR are placed in the area of messages of the interactive shell after the program termination.
Contacts
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Phone:
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e-mail:
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