WeraDesk Web Interface Documentation - User's Guide

The Acquisition Mode field has the following options:

S T O P Stop any running cycles after they finish; deactivate automatic cycle control; Interrupt/Stop full calibration cycles (if it takes too long); stop test modes; required before other modes can be selected

Continuous Acquisition Start continuous acquisition cycles as defined in WeraDesk

Permanent Acquisition Start permanent acquisition lasting one hour as defined in WeraDesk; write a contiguous stream of coherent data sets to the disk.

Single Acquisition Start one acquisition cycle immediately

Calibration Start one calibration cycle immediately

Cont. Calibration Start continuous calibration cycles as defined in WeraDesk

Internal Calibration Start a calibration cycle using the internal calibration box

Full Calibration Start a full calibration cycle - caution that takes ~ 5 houres

Internal Full Calibration Start a full calibration cycle - caution that takes ~ 5 houres using the internal calibration box

FM raw Acquisition Run WERA in chirp mode without internal range resolution

Cont. FM raw Acquisition Start continuous FM raw acquisition cycles

Test Acquisition Switch WERA to chirped mode without storing data; can immediately be stopped

Test Calibration Switch WERA to non-chirped mode without storing data; can immediately be stopped

Test Internal Calibration Switch WERA to internal calibration mode without storing data; can immediately be stopped

Scan Frequencies Activate a frequency scan as defined in the frequency management fields

Remarks

Any continuous measurement mode must be stopped before another mode can be activated.
Check the "Automatic Cycles" entry in the status page.
Any TEST mode must be stopped before another mode can be activated.

Full Calibration

This mode should be used like normal Calibration measurements, i.e. with the calibration box connected to all receiver channels. The purpose is to check the individual receiver's amplitude and phase response as a function of range cell. Currently, we calibrate the receivers with 80 Hz offset, which refers to about range cell 20. To get the 'Full Calibration', WeraDesk steps through frequency offsets in increments of one range cell and stores on-minute data sets. As 256 data sets are acquired, the complete procedure takes about 256 minutes (up to 4 hours 20 minutes), so please be patient and do not interrupt the cycle (e.g. go for some lunch or dinner).

Internal Calibration

Internal calibration allows for a quick-check of all receivers with an 'built-in' calibration box. This mode can be used to check for any drift or misfunction of the receivers without connecting to 'open air' (antennas) and receiving interference.

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Comments to: gurgel@ifm.uni-hamburg.de (Klaus-Werner Gurgel)

The Acquisition Mode field has the following options:
S T O P	Stop any running cycles after they finish; deactivate automatic cycle control; Interrupt/Stop full calibration cycles (if it takes too long); stop test modes; required before other modes can be selected
Continuous Acquisition	Start continuous acquisition cycles as defined in WeraDesk
Permanent Acquisition	Start permanent acquisition lasting one hour as defined in WeraDesk; write a contiguous stream of coherent data sets to the disk.
Single Acquisition	Start one acquisition cycle immediately
Calibration	Start one calibration cycle immediately
Cont. Calibration	Start continuous calibration cycles as defined in WeraDesk
Internal Calibration	Start a calibration cycle using the internal calibration box
Full Calibration	Start a full calibration cycle - caution that takes ~ 5 houres
Internal Full Calibration	Start a full calibration cycle - caution that takes ~ 5 houres using the internal calibration box
FM raw Acquisition	Run WERA in chirp mode without internal range resolution
Cont. FM raw Acquisition	Start continuous FM raw acquisition cycles
Test Acquisition	Switch WERA to chirped mode without storing data; can immediately be stopped
Test Calibration	Switch WERA to non-chirped mode without storing data; can immediately be stopped
Test Internal Calibration	Switch WERA to internal calibration mode without storing data; can immediately be stopped
Scan Frequencies	Activate a frequency scan as defined in the frequency management fields