Applications
Graphical user interfaces, remote control,
map-ware based visualization and system control components
SRS-GUI Multi-band digital fast-scanning
search and
intercept
receiver GUI application
The SRS-GUI
easy-to-use graphical user interface is designed to speed signal detection in
dense signal environments. Simple dialogs configure the system hardware, setup
and control the search and collection subsystem, and present user displays and
visuals. Multiple displays with high update rates can reveal broad and close-up
views of signals simultaneously. Threshold and triggers automate the task of
keeping track of incoming signals. Signals database automatically logs all
signals of interest for later use. Integration with legacy systems completes the
solution, shown here with Direction Finding results.
Versatile tools for the search and intercept task
Everything within the SRS-GUI user
interface is designed to increase an operator’s efficiency during a mission. The
key to efficiently intercepting and collecting signals is to provide the
operator with an integrated suite of tools for controlling the whole system.
Optimized graphical user interface
The SRS-GUI has easy-to-use graphical
user interface which is designed to speed signal detection in dense signal
environments. Simple tool panels are used to configure the system hardware,
setup and control the search and collection subsystem, and finally to present
various user displays and visualization tools.
High-speed visual displays
Display types with very high update rates show how signals change
over time and frequency. Multiple displays can reveal broad and close-up view of
signals simultaneously. Whether the signals are stationary or moving, burst or
continuous, low-level or high power, the SRS-GUI
spectrum and spectrogram displays have the speed and resolution needed to
resolve fine details.
SRM-GUI Narrow-band digital multi-channel
monitor
and collection receiver GUI application
Audible tools to
classify signals
The SRM-GUI can easily send signals to
narrow-band AM/FM/SSB monitoring receiver channel. Voice signals can be listened
to directly. Many digital signals have distinctive sounds that reveal the signal
type to an experienced operator. Manual or automatic modes let the operator
assign monitoring and collection instruction to signals of interest.
Capturing direction information
Signal parameters can also be passed to a direction finding
sub-system. The returned geo-location information like azimuth and elevation is
integrated in the display and saved in the signal history database.
Linking together with markers
Markers and the mouse works together to provide efficient working
environment. Handoff receivers and modulation recognition can all be linked to
markers. A click of the mouse place and the mouse wheel steps the marker from
peak to peak, the button pressing automatically pass center frequency and
bandwidth to the monitoring subsystem for further parameter extraction with DF
and modulation analysis. The operator can listen to the signal while the DF and
modulation type information update in the reserved display area.
Record a signal for later analysis
During a mission, signals can be recorded for later analysis. The
DDC based digital receivers zoom their center frequency and bandwidth to slice
the signal of interest out of the spectrum. Its time data is recorded and could
be sent to the host computer where analysts can evaluate it later.
SDF-GUI
Radio direction finding receiver
system remote control GUI application
The remote
control software is able to control up to 4 DF equipments, but more copy of the
program could run in same time to increase the number of the controlled receiver
in larger DF systems. The remote control software is able to send the collected measured
bearings to digital map based visualization programs, where the actual location
of the DF station is based on the GPS coordinates. The log acquisition function may be used to store all of main parameters
like frequency, squelch level, received signal level, measured bearing, position
(GPS) with a synchronization time stamp provided in the system’s internal
memory. The stored parameter file can be accessed via the user interface on the
equipment itself or through a connected computer using the remote control
software to reproduce an entire mission’s data. The control software can be used
for archiving the collected log for historical, analytic or future mission
planning.
Optionally, the DF receiver unit may be equipped with
an internal solid-state memory card-based voice recorder. This device can be
used to record voice communications for future analysis and synchronize them to
logged measurements using the stored GPS time data. Recordings may be played
back on the system and of course, it can link to an external tape, solid-state
or digital recorder for archiving the recordings.
The results of the task are presented in the form of result log records for
further processing by external command and control posts. Each log record
contains the basic parameters of the emission. Basically the main parameter of
the record is the carrier frequency of the signal. The record contains a sub
record of signal timing which shows the signal activity by recording the time of
signal emission using the GPS synchronized time stamp. The records contain all
of other parameters of the signal including signal level, bandwidth, modulation.
The result log can be used for further higher-level analysis.
The DF receiver equipment has a built-in electronic
compass in the antenna subsystem. This means that automatic calibration of the
bearing measurement is done without any human interaction. The displayed bearing
can be relative (to the antenna head) for homing operations or absolute (to the
magnetic north) for geo-location measurements. The equipment’s position is
accurately and continuously determined through the built-in GPS receiver using
geographical coordinates resulting perfect for mobile operations.
Radio direction finding,
emitter location with triangulation on digital map
ECM and ESM control applications
Spectrum of dense RF environment
Fixed frequency and hopping signals
DVB transmission on the panorama screen
Intercepting frequency hop transmission
Spread spectrum CDMA signals
Fixed channels FM transmission and CDMA
Monitoring receiver channels
Monitoring receiver channels with waterfall
Monitoring receiver channels
Direction finding display of monitoring receiver
Direction finding receivers remote control
Map-ware interface for direction finding receivers