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Step Track Hold Tracking

AvL Technologies

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4.2.

Sensor Outputs

Path

Main Window → View→ Sensor Output
Level 0

Figure 6 - Sensor Outputs

Item

Level

Description

Current Signal Average

The average of the current signal

Current Signal Gradient

The rate of change of the current signal level

Current Signal Latched

Lock

Reports if modem ever locked.

Current Signal Level

The Signal to Noise ratio that is being reported by the modem in use.

This is the signal that the controller will use to peak on.

Current Signal Lock

If the signal is above the configured threshold

Current Signal Noise

The amount of noise in the current signal level.

Current Signal Source

The type of signal source being used to scan

Current Signal Type

The type of signal being picked up by scanning

Step Track Hold

Elevation Inc Average

Based on the Configuration item, “Elevation Inclinometer Counts”. This

is the Inclinometer averaged reading.

Step Track Hold Pedestal

Elevation Target

After a peaking cycle is complete, the pedestal Elevation axis is latched

for current cycle. This value is read here.

Step Track Hold Target
Elevation Inclinometer

Following peaking cycle, the actual inclinometer is read here.

Содержание AAQ Step Track Hold Module

Страница 1: ...document describes the concepts required to use the AvL Step Track Hold software module and provides a detailed explanation of the associated module configuration items that are accessible through the AAQ GUI as part of the AvL AAQ Controller Appendix P AvL Technologies 900 159 015 ...

Страница 2: ...3 Signal Configuration Items 6 3 4 Feed Configuration Items 7 4 Operation 8 4 1 Functional Overview 8 4 1 1 Step Track Only 8 4 1 2 Position Hold Only 10 4 1 3 Step Track and Position Hold 11 4 2 Sensor Outputs 12 Date Revision Revision By Approved By Revision Description 12 3 15 Rev 1 0 JF Initial Release for 11 5 3 11 16 Rev 1 1 WL Updates for 11 6 release 6 28 16 Rev 11 6 0 WL Changes to revisi...

Страница 3: ... or the target satellite are prone to small or gradual movements This includes placing the antenna in environments subject to vibration as well as maintaining accurate beam pointing at a target satellite with an inclined orbit When implementing the Position Hold operating mode the module uses the antenna positioner motors to return the positioner to set pedestal azimuth and elevation coordinates w...

Страница 4: ...ion software Version Info Main Window Help Version Level 0 Be sure that the Remote Client ROM and device module are at or above the versions shown below Figure 1 Version Information 2 3 Hardware Connection 2 3 1 Serial Communication Connection Serial connection is not an option for the hardware associated with this module 2 3 1 Ethernet Communication Connection The Ethernet connection is internal ...

Страница 5: ...to allow the user to tailor the module s operation operating modes and its interaction with the AAQ controller The configuration items are located in the Target section 3 1 Core Configuration Items There are no Core Configuration items for this module 3 2 Target Configuration Items Path Main Window View Configuration Target Level 4 Figure 2 Target Configuration Window ...

Страница 6: ...sion mistake during step track peaking If this value is exceeded by the Current Signal Gradient sensor output then the peaking delay time will be reset and the antenna will not peak Set to 0 to disable the threshold Step Track Hold Noise Threshold 4 Integer 0 10000 The maximum signal variance noise that will cause a peaking decision mistake during step track peaking If this value is exceeded by th...

Страница 7: ...scription Cross Pattern Fine Azimuth Velocity 4 Float 0 01 0 5 Azimuth velocity in degrees sec for fine peaking Cross Pattern Fine Elevation Velocity 4 Float 0 01 0 5 Elevation velocity in degrees sec for fine peaking Cross Pattern Fine Peaking Height 4 Float 0 25 5 Height in degrees to scan during a fine cross pattern peaking function Cross Pattern Fine Peaking Width 4 Float 0 25 5 Width in degre...

Страница 8: ...ction of the peaking method to use for fine peaking routines Plateau Peaking Fine Azimuth Velocity 4 Float 0 02 0 5 Azimuth velocity in degrees sec for fine peaking Plateau Peaking Fine Elevation Velocity 4 Float 0 02 0 5 Elevation velocity in degrees sec for fine peaking Step Pattern Fine Azimuth Velocity 4 Float 0 02 0 5 Azimuth velocity in degrees sec for fine peaking Step Pattern Fine Elevatio...

Страница 9: ...he target tab Run Track after Acquire will cause the system to enter tracking at the end of an Acquire process Run Track after Peak will cause the module will be activated after a successful completion of a Peak or Repeak command Run Track on Startup will cause the module will be activated after about 30 seconds if the antenna is both idle and has an Rx lock with the Current Signal source after th...

Страница 10: ... of the satellite acquisition process via the Run Track after Peak or Run Track after Acquire Once the module has been activated the antenna will perform fine peaking at regular user configurable intervals The mode can be used with any signaling device configured to be used with the antenna system When the system enters tracking with Step Track mode selected it starts a timer which it checks again...

Страница 11: ...ld El Threshold configuration item controls how sensitive the module is to pedestal elevation position deviation If the difference between the Pedestal El sensor output and the module s recorded value exceeds the Step Track Hold El Threshold then the module will command movement using the elevation motors and return to the recorded elevation pedestal position The Position Hold only mode can be set...

Страница 12: ...fine peaking phase the Peak command on the AAQ GUI will show as selected figure 6 When Step Track and Position Hold mode is activated it starts a timer which it checks against the Step Track Hold Peaking Delay parameter Once this delay interval has been reached the antenna will enter the peaking phase and perform fine peaking Fine peaking also accessible through the Repeak command optimizes Rx sig...

Страница 13: ... controller will use to peak on Current Signal Lock 0 If the signal is above the configured threshold Current Signal Noise 0 The amount of noise in the current signal level Current Signal Source 0 The type of signal source being used to scan Current Signal Type 0 The type of signal being picked up by scanning Step Track Hold Elevation Inc Average 0 Based on the Configuration item Elevation Inclino...

Страница 14: ...a Beacon Receiver or other signal source device the receiver data will be shown in the device window For signal device configuration see the appendix for the device used Path Main Window View Device Window Level 0 Figure 7 Device Window 4 3 2 Device Control Window A Device Control Window is not needed for operation and is not included in the software ...

Страница 15: ...phase of Step Track Hold Track command button is illuminated and the GUI message reads waiting for next command or Locked and Acquired Check Step Track Hold Gradient Threshold Step Track Hold Noise Threshold in target tab Check Step Trak Hold Peaking Delay and all Step Track hold Thresholds in target tab Check to see if there is a signal lock Does not receive a Signal Lock Antenna does not receive...

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