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en:lesson03 [2019/10/07 15:50]
golikov created
en:lesson03 [2021/04/05 11:20] (current)
golikov
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-====== ​Receiving ​a satellite image ======+====== ​Obtaining ​a satellite image ======
  
-===== Configuring ​WXtoimg =====+===== Setting up WXtoimg =====
  
-To decrypt ​signals received from satellites, there is special ​program ​WXtoimg, which receives an audio signal ​received ​from satellite using the SDR # program+In order to decode the signals received from satellites, there is the special ​software called ​WXtoimg, which receives an audio signal ​taken from the satellite using the SDR# software as its input.  
-The first time you start WXtoimg, ​you must configure your location. Go to the Options ​-> Ground Station Location ​section, enter the name of the city and specify ​your coordinates.+The first time a user launches ​WXtoimg, ​it is necessary to set up the location. Go to Options ​→ Ground Station Location, enter the city name and your coordinates.
  
 {{:​03image001.png?​400|}} {{:​03image001.png?​400|}}
  
    
-Then go to the Options ​-> Recording Options ​section ​and configure the sound source. +Then proceed ​to Options ​→ Recording Options” and configure the sound source.  
-In the soundcard section, specify CABLE Output.+ 
 +Select “CABLE Output” in the soundcard ​selection ​section.
  
 {{:​03image002.png?​600|}} {{:​03image002.png?​600|}}
    
-Then you need to update the information on the coordinates ​of the satellites. Go to File -> Update Keplers. ​After the update is completed, a confirmation will appear in the lower left corner.+Further ​you need to update the satellite ​coordinates. Go to File → Update Keplers 
 + 
 +When the update ​procedure ​is done, a confirmation will appear in the lower left corner.
  
 {{:​03image004.png?​400|}} {{:​03image004.png?​400|}}
    
-Each time you start WXtoimg, you must verify ​that the signal source is configured ​correctly.+Each time you start WXtoimg, you will need to check that the signal source is set up correctly.
  
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-Select virtual CABLE Output.+Select ​the virtual CABLE Output.
  
-{{:03image006.png?400|}}+{{:en:​cable_output_2.png?400|}}
    
 Start recording. Start recording.
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-To receive signals, turn on Auto Record.+Turn on the “Auto Record” function to receive signals.
  
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-Nowwhen any NOAA satellite appears higher than 10 degrees above the horizon, the recording of the transmitted image will automatically start.+Beginning from this momentwhenever ​any NOAA satellite appears ​to be higher than 10 degrees above the horizon, the software will automatically begin recording of the transmitted image.
  
 {{:​03image009.png?​400|}} {{:​03image009.png?​400|}}
    
-Make sure that the signal ​level in the lower right corner is green, if not, increase ​the sound volume in SDR #.+Make sure the signal ​strength, provided ​in the lower right corneris green, if not - turn up the audio volume in the SDR# software.
  
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-With a good signal ​level from below, the resulting image will begin to appear ​line by line. Left in the visible rangeand right in the infrared.+If the signal ​strength is goodthen the resulting image will begin to appear in rows below. The visible range is indicated on the left and the infrared ​one - on the right.
  
 {{:​03image011.png?​800|}} {{:​03image011.png?​800|}}
    
-Wait for the transfer to end, and stop recording.+Wait for the end of the transmission, and stop recording.
  
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   ​   ​
-Start the automatic processing of the received images.+Begin automatic processing of received images.
  
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-The resulting image will be processed automatically and the contours ​of states will be plotted ​on it. Pay attention to noise that degrades the image.+The resulting image will be processed automatically and frames ​of corresponding ​states will be overlaid ​on it. Pay attention to interference which degrades the image.
  
 {{:​03image015.png?​400|}} {{:​03image015.png?​400|}}
    
-This image is in Normal mode.+This is an image provided ​in the Normal mode.
  
 {{:​03image017.png?​150|}} {{:​03image017.png?​150|}}
    
-A whole series ​of images will be automatically generated ​from the resulting image with various filters applied. ​These images ​can be seen in the Saved Images ​section.+Considering the obtained image, a number ​of images will be automatically generated with various filters applied. ​A user can check these images in the Saved Images” menu.
  
 {{:​03image018.png?​300|}} {{:​03image018.png?​300|}}
    
-You can also switch ​the types of image processing in the Enhancements menu.+A user can also switch types of image processing in the Enhancements” menu.
  
 ===== Enhancements Menu ===== ===== Enhancements Menu =====
  
-Increasing the contrast of channel A (visible range).+Contrast enhancement for channel A (visible range).
  
 {{:​03image019.png?​300|}} {{:​03image019.png?​300|}}
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-Increase the contrast of channel B (IR range).+Contrast enhancement for channel B (infrared).
  
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-The image in the infrared range with a card overlay. The seas are bluethe earth is green. High clouds ​appear ​whitelow clouds ​appear ​gray. Darker colors indicate warmer areas.+IR image with map overlay. The water volume is colored ​blue and the land volume ​is colored ​green. High clouds ​are colored ​white and low clouds ​are colored ​gray. Darker colors indicate warmer areas.
  
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-Multispectral analysis. ​The image is used in the visible and infrared channels and it is determined ​which areas are most likely to be clouds, land or sea. The result is a bright image in false colors.+Multispectral analysis. ​An image is provided both in visible and infrared channels and this structure determines ​which areas are most likely to be clouds, landor sea. The result is represented in a bright image in false colors.
  
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-Image with blue water and flowers ​more suitable for the earth.+An image with indication of blue water and colors is more suitable for land description.
  
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-Создает ложное цветное изображение на основе температурыиспользуя цветовую модель ​HVC.+The software creates a false color image based on temperatureusing the HVC color model.
  
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-Sea surface temperature. ​Creates ​a false color image based on sea surface temperature. No attempt is made to distinguish cloud or land from the sea. Sea surface temperature may be incorrect due to the presence of thin or small clouds in the estimated pixel or due to noise in the signal.+Sea surface temperature. ​The software creates ​a false color image based on the sea surface temperature. No attempts are made to distinguish cloud or land from sea. The sea surface temperature may be incorrect due to presence of thin or small clouds in pixels being evaluated ​or due to presence of noise in the signal.
  
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-Image in false colors, shows the temperature of the clouds ​and the surface. ​Violet is low and red is high.+The image provided ​in false colors, shows cloud and surface ​temperature valuesThe purple color indicates ​low temperatures ​and the red color indicates ​high temperatures.
  
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-It is possible to change the type of projection.+It is possible to change the projection ​type.
  
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-Isometric Cylindrical Projection+Equal-velocity cylindrical projection
  
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en/lesson03.txt · Last modified: 2021/04/05 11:20 by golikov